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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.

    Source document

    docs/rpo/gmc/caballero-gbody.md

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    Rendered verbatim from the reference. Factory citations shown as ⛭ GM Heritage — …. For filtering, badges, and crosslinks, use the interactive Caballero — G-body (1983–1987) page.

    GMC Caballero — G-body (1983–1987)

    The Caballero of 1983–1987 was GMC's three-passenger sedan pickup (model 1GW80), which NICB's 1985, 1987 and 1990 VIN manuals list with the El Camino as one light-duty truck line and ½ ton series; the kits sell it as the base model with the D91 Amarillo two-tone option, the YE7 Diablo in 1983 and, from 1984, the Z15 Diablo Decor (the El Camino's SS Sport Decor code). No GMC order guide is in the repository, so every factory-cited row comes from the Chevrolet El Camino Heritage kits; all five (1983–1987) are joint El Camino/Caballero books, whose model selectors, power teams, option price pages, model option pages, engine pages and 1983–1986 color charts are headed El Camino/Caballero and print the Caballero, Amarillo and Diablo names, and only those pages are cited. The 1986 and 1987 standard-equipment price pages are headed El Camino and price only El Camino models, but their option lines print the joint Conquista/Amarillo and SS Sport/Diablo Decor names, so they are counted as joint pages; the kits' Chevrolet-only pages (the 1983 Royal Knight page, the 1984 LD5 engine page, the sales-brochure and restoration pages and the 1987 color chart) date no year, so D60 stops at 1986 and MV9, whose only page is the 1987 restoration VIN page, has no row. Against the merged El Camino doc, the El Camino-only Z16 Royal Knight and 1983 Z15 Super Sport are left out, YE7 is added, Z15 and D91 carry the Caballero names, and every other code keeps the El Camino doc's years (its OCR-lost years are left out here too); engines are the 3.8L V6 LC3 (LD5 in California) and the 5.7L LF9 diesel to 1984, the 4.3L LB4 V6 from 1985 and the 5.0L LG4 V8 throughout, all with automatic transmissions; solid paints (two-digit color numbers) and seat trim combinations are not listed, but the 1983–1985 charts' must-be-ordered two-tone accent colors (M suffix) are.

    Codes

    Engines

    Code Description Years Models/Notes Confidence
    LC3 Engine, 3.8L V6, 229 cu in, 2-barrel carburetor 1983–1984 Base engine; not in California; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.4, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 confirmed
    LD5 Engine, 3.8L V6, 231 cu in, 2-barrel carburetor 1983–1984 California only, with YF5; 1984 from the power team page's California ratings line (the kit's LD5 engine page names only the El Camino and is not cited); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.4 confirmed
    LB4 Engine, 4.3L V6, 262 cu in, electronic fuel injection 1985–1987 Base engine; 1987 from the LB4 engine page, which gives it as standard on the El Camino/Caballero; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.10 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.23 confirmed
    LG4 Engine, 5.0L V8, 305 cu in, 4-barrel carburetor 1983–1987 Optional; 1986 from the power team page's ratings line; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.21 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.10 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.4 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.31 confirmed
    LF9 Engine, 5.7L V8 diesel, 350 cu in 1983–1984 Optional; not with UF7, U14, F41 or N23; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 confirmed

    Transmissions

    Code Description Years Models/Notes Confidence
    MX1 Transmission, 3 speed automatic 1983–1986 Standard; the 1987 order guide prints the 3 speed automatic without its code; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.5 confirmed
    MX0 Transmission, 4 speed automatic, overdrive 1985–1986 The 1985 and 1986 order guides print MXO (letter O); the zero form is the code; the 1987 order guide prints the 4 speed automatic without its code; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.4 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.5 confirmed

    Axles

    Code Description Years Models/Notes Confidence
    G80 Axle, rear, limited slip differential 1983–1987 The 1984 order guide prints G8O (letter O); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.45 confirmed
    G92 Axle, rear, performance ratio 1983–1987 1984: not with LD5; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.4 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.21 confirmed
    G84 Axle, rear, high altitude ratio 1983 Only with NA6 and LC3; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 confirmed

    Packages & Trims

    Code Description Years Models/Notes Confidence
    YE7 Diablo package 1983 Caballero only: the model selector lists the Diablo as a Caballero-only model of 1GW80, where the El Camino has the Z15 Super Sport; includes D35 sport mirrors; not with D33, BW2 or BX8; cited from the color chart heading that pairs YE7 Diablo (GMC only) with the Chevrolet Z15; the model selector's Diablo line prints the code as YEZ, the standard-equipment price page's Diablo line as YET, and the Super Sport/Diablo model page heads it YE9; GMC-only code, absent from the El Camino doc; shared G-body platform pages, cited from the joint El Camino/Caballero pages of the Chevrolet El Camino (G-body) kit ⛭ GM Heritage — 1983 Chevrolet El Camino, p.16 confirmed
    Z15 Diablo Decor package 1984–1987 Caballero only: the model selectors list the Diablo Decor as Caballero only and the SS Sport Decor under the same code as El Camino only (the El Camino doc reads Z15 as the SS Sport Decor package); includes D35 sport mirrors and Rally wheels; not with BW2 or BX8; 1984 from the Diablo Decor model page (the 1984 model selector prints 215); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1984 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.1 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.15 confirmed
    D91 Amarillo package, special two-tone paint 1983–1987 Amarillo is the Caballero's name for the option the El Camino sells as the Conquista (the El Camino doc's reading); includes BX8 moldings; not with Z15; 1986 and 1987 from the model selector (the 1987 order guide line prints 091); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.1 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.15 confirmed

    Equipment

    Code Description Years Models/Notes Confidence
    A01 Glass, tinted, all windows 1983–1987 The 1984, 1986 and 1987 order guides print AO1 (letter O); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    A31 Windows, power, electric 1983–1987 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.47 confirmed
    AU3 Door locks, power, electric 1983, 1985–1987 The 1984 order guide prints AUS, so 1984 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    AV3 Tie-downs, cargo box 1983–1987 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.47 confirmed
    B32 Floor mats, color-keyed, front 1983, 1986 The 1984, 1985 and 1987 order guides print 832, so those years are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    B93 Moldings, door edge guards 1983, 1985–1986 The 1984 order guide prints B9s and the 1987 guide prints no code, so those years are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    BW2 Moldings, body side, deluxe, black 1983, 1985–1986 Not with the Diablo package (YE7 or Z15) or D91; the 1984 order guide line prints BWZ and the 1987 guide names BW2 only in another option's text, so 1984 and 1987 are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    BX8 Moldings, front fender, body side and tailgate 1983–1987 Included with D91; not with the Diablo package (YE7 or Z15) or BW2; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    C60 Air conditioning, with increased cooling 1983, 1985–1986 The 1984 order guide line prints CBD and the 1987 line prints С6О (Cyrillic С, letter O), so 1984 and 1987 are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    CD4 Windshield wipers, intermittent 1983–1987 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.47 confirmed
    D33 Mirror, outside rearview, left-hand remote 1983 Not with YE7; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 confirmed
    D35 Mirrors, sport, left-hand remote and right-hand manual 1983, 1986 Included with the Diablo package (YE7 or Z15); the 1984, 1985 and 1987 order guides print D3Б or 035, so those years are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    D55 Console, front compartment floor 1986–1987 Only with bucket seats; the 1984 order guide line prints Di5h (D55 appears only in another option's text) and the 1985 line prints 055, so those years are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    D68 Mirrors, sport, twin remote 1987 Priced separately with and without Z15; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    D73 Rails, cargo box side 1983–1984 The 1985–1987 order guides print 073, so those years are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 confirmed
    F41 Suspension, sport 1983–1987 1983–1984: not with LF9; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    K05 Heater, engine block 1983–1987 600 watts, 120 volts (1984 on); 1983: included with V10, and 1984: included with the cold climate package, code not printed; the 1986 and 1987 order guides print KO5 (letter O); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    K34 Speed control, electronic, with resume speed 1984–1986 The 1987 order guide prints К34 with a Cyrillic К, which the checker does not accept, so 1987 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    K35 Speed control, automatic, with resume speed 1983 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 confirmed
    N18 Wheel cover locking package 1983–1985 Only with N95; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 confirmed
    N23 Fuel tank, 22 gallon 1983–1987 1983–1984: not with LF9; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.47 confirmed
    N33 Steering wheel, Comfortilt 1983–1987 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    N91 Wheel covers, wire, with locks 1986–1987 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.47 confirmed
    N95 Wheel covers, wire 1983–1985 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.7 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 confirmed
    PB2 Wheel covers, sport, silver 1983 Not with Rally wheels; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.7 confirmed
    QFT Tires, P205/75R14 all season steel belted radial, blackwall 1985 Standard; the 1987 order guide prints OFT, so 1987 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 confirmed
    QXX Tires, P205/75R14 highway steel belted radial, blackwall 1983 Standard; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 confirmed
    QXZ Tires, P205/75R14 highway steel belted radial, white lettered 1983 The page prints QxZ (lower-case x) at the highest tire price, which matches the white lettered line; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 confirmed
    QJR Tires, P205/75R14 all season steel belted radial, whitewall 1985, 1987 The 1986 order guide prints the tire without its code; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.45 confirmed
    QSA Tires, P205/75R14 all season steel belted radial, white lettered 1985–1986 The 1984 order guide prints OSA and the 1987 guide aSA, so those years are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.5 confirmed
    RVT Tires, P205/75R14 highway steel belted radial, white stripe 1983 Optional; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 confirmed
    TR9 Lighting, auxiliary, with headlamp warning buzzer and underhood lights 1983, 1985–1987 The 1984 order guide's code is unreadable in the OCR, so 1984 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    TT4 Headlamps, halogen, high and low beams 1985–1986 The 1987 order guide prints TTA, so 1987 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    TT5 Headlamps, halogen, high beam 1983 The 1984 order guide prints T.T5, so 1984 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 confirmed
    U14 Instrumentation, special, with tachometer, voltmeter, temperature and oil pressure gages, clock and trip odometer 1983, 1985 Not with UF7; 1983: not with LF9; the 1984 order guide line prints UTRA, so 1984 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 confirmed
    U16 Tachometer 1986–1987 Only with U39; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    U35 Clock, quartz electric 1983, 1985 1983: included with UF7 or U14, and 1985: included with UF7; the 1984 order guide line prints 435, so 1984 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 confirmed
    U39 Gage package, voltmeter, temperature and oil pressure gages, trip odometer 1986–1987 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    U58 Radio, AM/FM stereo 1983–1985 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 confirmed
    U63 Radio, AM 1983–1987 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    U69 Radio, AM/FM 1983–1985 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 confirmed
    U73 Antenna, fixed mast 1983–1985, 1987 Included with a radio; the 1986 order guide prints the antenna without its code; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    UA1 Battery, heavy duty 1983, 1985–1987 1983: included with V10; 1986–1987: not with LB4; the 1983 and 1985–1987 order guide lines print UAI (letter I); the 1984 line prints UAT, so 1984 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    UF7 Gage package, voltmeter, temperature and oil pressure gages, clock, trip odometer 1983–1985 Not with U14; 1983–1984: not with LF9; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 confirmed
    UK4 Radio, AM/FM stereo, ETR, seek and scan 1986 The 1987 order guide prints UKA, so 1987 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    UL6 Radio, AM, with digital clock 1986 The 1987 order guide prints ULB, so 1987 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    UM6 Radio, AM/FM stereo, ETR, seek and scan, stereo cassette tape, digital clock 1986–1987 Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    UM7 Radio, AM/FM stereo, ETR, seek and scan, digital clock 1986 The 1987 order guide prints UMT, so 1987 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    UN3 Radio, AM/FM stereo, stereo cassette tape 1983, 1985 The 1984 order guide line prints UMS, so 1984 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 confirmed
    UX1 Radio, AM stereo/FM stereo, ETR, seek and scan, stereo cassette tape with search and repeat, graphic equalizer, digital clock 1987 The 1986 order guide prints this radio without its code; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    V08 Cooling, heavy duty 1983–1987 Priced separately with and without C60; the 1984 order guide prints both V08 and VO8; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.12 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    V10 Cold climate package 1983 Only with LF9; includes UA1 and K05 (the page prints KO5); the 1984 order guide prints the package without its code, so 1984 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 confirmed
    V30 Bumper guards, front and rear 1986 The other years' order guides print bumper guards without a readable code; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 confirmed
    ZJ7 Wheels, Rally, styled, with special hub caps and trim rings 1987 Included with Z15; the earlier order guide lines print 257, 2S7, 2J7 and ZS7, so those years are not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1987 Chevrolet El Camino, p.47 confirmed

    Paint

    Code Description Years Models/Notes Confidence
    12M Accent color, Silver Metallic 1985 Must be ordered; two-tone accent color with D91 or Z15; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 confirmed
    15M Accent color, Silver Metallic 1983 Must be ordered; two-tone accent color with YE7 (the chart section the Diablo shares with the El Camino's Super Sport); the 1984 chart prints 15M against Bright Silver Metallic, whose solid code on the same chart is 17, so 1984 is not claimed; the 1985 chart uses 15M for Medium Gray Metallic (see that row); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.16 confirmed
    15M Accent color, Medium Gray Metallic 1985 Must be ordered; two-tone accent color with Z15; the 1983 chart uses 15M for Silver Metallic (see that row); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 confirmed
    19M Accent color, Black 1983–1985 Must be ordered; with D91 (lower body color under Silver); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.16 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.15 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 confirmed
    25M Accent color, Light Blue Metallic 1985 Must be ordered; two-tone accent color with Z15; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 confirmed
    27M Accent color, Dark Blue Metallic 1983–1984 Must be ordered; two-tone accent color with D91 or the Diablo package (YE7 or Z15); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.16 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.15 confirmed
    31M Accent color, Dark Blue Metallic 1985 Must be ordered; two-tone accent color with D91; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 confirmed
    48M Accent color, Dark Fern Metallic 1983–1984 Must be ordered; two-tone accent color with D91 or the Diablo package (YE7 or Z15); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.16 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.15 confirmed
    58M Accent color, Light Brown Metallic 1985 Must be ordered; two-tone accent color with D91; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 confirmed
    62M Accent color, Medium Brown Metallic 1985 Must be ordered; two-tone accent color with Z15; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 confirmed
    67M Accent color, Dark Brown Metallic 1983–1984 Must be ordered; two-tone accent color with D91 or the Diablo package (YE7 or Z15); shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.16 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.15 confirmed
    78M Accent color, Maroon Metallic 1983–1984 Must be ordered; two-tone accent color with D91 or the Diablo package (YE7 or Z15); the 1984 chart names it Dark Maroon Metallic; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.16 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.15 confirmed
    79M Accent color, Dark Maroon Metallic 1985 Must be ordered; two-tone accent color with D91; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 confirmed

    Internal / Process

    Code Description Years Models/Notes Confidence
    B3W Price information, preliminary 1983–1984, 1986–1987 internal code Listed under the moldings options with no price (N.A.); the 1985 order guide prints 83W, so 1985 is not claimed; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.6 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.41 confirmed
    D60 Paint, non-recommended color combination authorization 1983–1986 internal code Printed as a heading of the color and trim charts (not permitted with D91 or the Diablo package, permitted otherwise); shared G-body platform code; cited from the joint El Camino/Caballero color charts of the Chevrolet El Camino kits; 1987 is left out: its color chart is headed El Camino and names only the Conquista and SS Sport Decor ⛭ GM Heritage — 1983 Chevrolet El Camino, p.16 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.15 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.19 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.13 confirmed
    NA5 Emissions, standard (federal) 1983–1987 internal code Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.45 confirmed
    NA6 Emissions, high altitude 1983–1984 internal code Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 confirmed
    YF5 Emissions, California 1983–1987 internal code Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits ⛭ GM Heritage — 1983 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1984 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1985 Chevrolet El Camino, p.11 ⛭ GM Heritage — 1986 Chevrolet El Camino, p.5 ⛭ GM Heritage — 1987 Chevrolet El Camino, p.45 confirmed

    Sources

    Factory documents (T1)

    • [HK] chevrolet/1983-Chevrolet-El-Camino.txt — joint El Camino/Caballero order guide, 1983: power teams (p. 4), standard equipment and option price pages (pp. 5–7) and color chart (p. 16); the Royal Knight page (p. 14) and the MVMA forms are Chevrolet-only and not cited
    • [HK] chevrolet/1984-Chevrolet-El-Camino.txt — joint El Camino/Caballero order guide, 1984: power teams (p. 4), price pages (pp. 5–7), Diablo Decor model page (p. 12), color chart (p. 15) and LG4 engine page (p. 21); the LD5 engine page (p. 18) names only the El Camino and is not cited
    • [HK] chevrolet/1985-Chevrolet-El-Camino.txt — joint El Camino/Caballero order guide, 1985: model selector (p. 7), power teams (p. 10), price pages (pp. 11–12) and color chart (p. 19); the sales-brochure pages (pp. 1–6) are Chevrolet-only and not cited
    • [HK] chevrolet/1986-Chevrolet-El-Camino.txt — joint El Camino/Caballero order guide, 1986: model selector (p. 1), power teams (p. 4), standard-equipment price page headed El Camino with joint option text (p. 5), option page (p. 6) and color chart (p. 13)
    • [HK] chevrolet/1987-Chevrolet-El-Camino.txt — joint El Camino/Caballero pages, 1987: model selector (p. 15), power teams (p. 21), LB4 and LG4 engine pages (pp. 23, 31), option pages (pp. 41, 47) and standard-equipment price page headed El Camino with joint option text (p. 45); the Chevrolet-only color chart (p. 39) dates no year and is not cited

    Other sources

    • NICB VIN manuals: docs/reference/nicb/nicb1985-gm.txt p.81–82, docs/reference/nicb/nicb1987-gm.txt p.92, docs/reference/nicb/nicb1990-gm.txt p.82–83 (the El Camino and Caballero as one light-duty truck line and ½ ton series; no RPO codes or badges)
    • docs/rpo/chevrolet/el-camino-gen5.md — the merged El Camino doc, the reading of the same kits (descriptions, sections and excluded years follow it)
    • http://www.73-87.com/7387info/7387rpo1.htm (2026-11-02; corroboration sample, direct fetch; full-size truck RPO list, no El Camino or Caballero entries)
    • http://www.73-87.com/7387info/7387rpo2.htm (2026-11-02; corroboration sample, direct fetch; full-size truck RPO list, no El Camino or Caballero entries)
    • https://decoderpo.com/?s=caballero (2026-11-02; one direct request; no Caballero page)