Also described as Power brakes (vacuum)Power brakesVacuum Power Brake EquipmentVacuum Power brakeVacuum power brake equipmentVacuum power brakesBrakes, powerBrakes, vacuum powerRoof, Mosaic Black Metallic
Also documented for BuickGMCOldsmobilePontiac
Documented applications
- 1964–1972 Factory-verifiedGM Heritage factory kit — 1964 Chevrolet Chevelle, p.117.GM Heritage factory kit — 1972 Chevrolet Chevelle, p.91.
- 1963 Factory-verified
$43.05; 3,336 built
GM Heritage factory kit — 1963 Chevrolet Corvette, p.8. - 1964 Factory-verified
$43.05; 2,270 built
GM Heritage factory kit — 1964 Chevrolet Corvette, p.17. - 1965 Factory-verified
$43.05; 4,044 built
GM Heritage factory kit — 1965 Chevrolet Corvette, p.14. - 1966 Factory-verified
$42.15; 5,464 built
GM Heritage factory kit — 1966 Chevrolet Corvette, p.14. - 1967 Confirmed
$42.15; 4,766 built
- 1968 Factory-verified
$42.15; 9,559 built
GM Heritage factory kit — 1968 Chevrolet Corvette, p.7. - 1969 Factory-verified
$42.15; 16,876 built (price and count: Corvette Black Book)
GM Heritage factory kit — 1969 Chevrolet Corvette, p.84. - 1970 Confirmed
$47.40; 8,984 built
- 1971 Factory-verified
$47.00; 13,558 built (price and count: Corvette Black Book)
GM Heritage factory kit — 1971 Chevrolet Corvette, p.132. - 1972 Confirmed
$47.40 (early-year $46.00); 18,770 built
- 1973 Factory-verified
$46.00; 24,168 built (kit price schedule p.24: $46)
GM Heritage factory kit — 1973 Chevrolet Corvette, p.24. - 1974 Factory-verified
$49.00; 33,306 built (price and count: Corvette Black Book)
GM Heritage factory kit — 1974 Chevrolet Corvette, p.30. - 1975 Factory-verified
$55.00 (factory kit resolves: GM's price schedule, effective with the start of 1975 production, lists J50 at $55.00, as CAC does; CorvSport, CorvetteStory and the Corvette Black Book print $50.00); 35,842 built (count: Corvette Black Book)
GM Heritage factory kit — 1975 Chevrolet Corvette, p.28. - 1976 Factory-verified
$59.00; 46,558 built (100% — effectively standard fitment; kit note: power brakes/steering were separate options early, then folded into base price during 1976)
GM Heritage factory kit — 1976 Chevrolet Corvette, p.33.
- -1964- Factory-verified
$43.05 for 1964
GM Heritage factory kit — 1964 Chevrolet, p.8.
- 1975–1977 Factory-verified
new option 1975
GM Heritage factory kit — 1976 Chevrolet Monza, p.32.
- 1984, 1986–1987 Factory-verified
1984: optional on coupe and sedan, standard on the wagon; 1986–1987 standard on all models; 1985 is not claimed: no dated page of that year prints the code as an entry of its own
GM Heritage factory kit — 1984 Chevrolet Celebrity, p.41.GM Heritage factory kit — 1986 Chevrolet Celebrity, p.41.GM Heritage factory kit — 1987 Chevrolet Celebrity, p.41.
- 1985 Factory-verified
variable ratio brake pedal; required with the diesel engine; the 1984 line prints no code and the 1986 page prints it as 150, so those years are not claimed
GM Heritage factory kit — 1985 Chevrolet Chevette, p.29.
- 1984–1985 Factory-verified
required with the V6 engines and with C60; the spec sheets print J50 only in requirement notes ("RPO-J50 Power Brakes"), never as an option line, so the years rest on that cross-reference
GM Heritage factory kit — 1984 Chevrolet Citation, p.34.GM Heritage factory kit — 1985 Chevrolet Citation, p.33.
- 1984, 1986, 1987 Factory-verifiedGM Heritage factory kit — 1984 Chevrolet Truck, p.46.GM Heritage factory kit — 1986 Chevrolet Truck, p.160.GM Heritage factory kit — 1987 Chevrolet Truck, p.59.
- 1984, 1989 Factory-verified
G10; 1984 from the 1984 data book pages in the kit file labelled 1985.
GM Heritage factory kit — 1985 Chevrolet G Van, p.16.GM Heritage factory kit — 1989 Chevrolet G Van, p.30.
- 1983, 1988 Factory-verifiedGM Heritage factory kit — 1983 Chevrolet S 10, p.32.GM Heritage factory kit — 1988 Chevrolet S 10, p.19.
- 2025–2027 Factory-verified
RS: O; requires GB0
This page aggregates every documented appearance of J50 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.