Brakes, power, front disc

Years 1984, 1986–87 Models 2 Factory citations 3

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Also described as Power brakes

Also documented for Chevrolet GMC Oldsmobile Pontiac

Documented applications

Century — A-body (1982–1996)

1984, 1986–1987 Single-source

Printed as base equipment; shared A-body code, cited from the Chevrolet Celebrity kits; no Century source names it, so the row rests on the kit pages alone; 1985 is left out because the page that prints it carries no model-year field, and the 1988 listed pages do not print it; for 1987 the row overlaps J41 above (the parts catalog names the front-disc, rear-drum system for 1987–1991) and the kit page only prints power brakes as base equipment

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.

Regal — G-body (1983–1987)

1987 Confirmed

standard; gnttype.org's 1987 option sheet

This page aggregates every documented appearance of J50 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.