Transmission, automatic, 4 speed, HMD, F31 (4T60E), electronically controlled clutch

Years 1992–96, 1998–00 Models 4 Factory citations 11

Also described as Transmission, automatic, 4 speed, 4T60-E, electronicTransmission, automatic 4-speed, 4T60-E, electronicTransaxle, 4 speed automatic

Also documented for Buick Chevrolet Oldsmobile

Documented applications

Grand Prix — W-body (1988–1996)

1993, 1995–1996 Single-source

matched to the unit by meaning: Wikipedia's 4T60-E article gives the unit to the Grand Prix GT and GTP with the LQ1 for 1992–1996, and the W-Body Page names the 4T60E for 1992 on, but neither prints a code; 1992 and 1994 are left out because no listed kit page with a readable model year prints the code; the kit pages word it four speed automatic, HMD; the description follows the merged regal-w-body-1997, century-w-body and lumina-gen2 docs, while the merged lumina-gen1 doc reads M13 as Transaxle, 4 speed automatic, HMD; shared W-body code; cited from the Chevrolet Lumina kit

GM Heritage factory kit — 1993 Chevrolet Lumina, p.73.
GM Heritage factory kit — 1995 Chevrolet Lumina, p.53.
GM Heritage factory kit — 1996 Chevrolet Lumina, p.104.

Grand Prix — W-body, 7th gen (1997–2003)

1998–2000 Factory-verified

GM factory document — 1998 pontiac grand prix rpo code list, p.1.
GM factory document — 2000 pontiac grand prix rpo code list, p.1.

Montana — U-body second generation (1997–2005)

1998 Factory-verified

requires LA1

GM factory document — 1998 pontiac trans sport ext rpo code list, p.1.

Trans Sport — U-body / GMT199 (1990–1996)

1992–1996 Single-source

with the L27 (1992–1995) and the LA1 (1996), as the power teams pages pair them; matched to the unit by meaning: Wikipedia gives the 3800 a 4 speed 4T60 automatic from 1992 and retires the 3 speed for 1996 (its infobox and 4T60-E article name the 4T60-E, the article for the Trans Sport 1992–1998) but prints no code; the 1992–1995 optional-equipment weight pages also print the transmission's own line; shared U-body code; cited from the Chevrolet Lumina APV kit

GM Heritage factory kit — 1992 Chevrolet LuminaAPV, p.6, p.42.
GM Heritage factory kit — 1993 Chevrolet LuminaAPV, p.4, p.40.
GM Heritage factory kit — 1994 Chevrolet LuminaAPV, p.4, p.40.
GM Heritage factory kit — 1995 Chevrolet LuminaAPV, p.7, p.79.
GM Heritage factory kit — 1996 Chevrolet LuminaAPV, p.4.

This page aggregates every documented appearance of M13 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.