Stabilizer bar, front, heavy duty

Years 1983–91 Models 2 Factory citations 10

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Also documented for Chevrolet

Documented applications

Sierra — Square body (1983–1991)

1984–1987 Factory-verified

shared platform code; cited from the square-body C/K pickup kits

GM Heritage factory kit — 1984 Chevrolet Truck, p.47.
GM Heritage factory kit — 1985 Chevrolet Truck, p.45.
GM Heritage factory kit — 1986 Chevrolet Truck, p.156.
GM Heritage factory kit — 1987 Chevrolet Truck, p.60.

Suburban — Square body (1983–1991)

1983, 1986, 1988–1991 Single-source

1.25 inch diameter; standard on K/V models, optional on the C20/R20; shared square-body platform code; cited from the Chevrolet Suburban kit; 1991 rests on the Chevrolet-only 1991 Suburban book, so the row is single-source

GM Heritage factory kit — 1983 Chevrolet Suburban, p.18.
GM Heritage factory kit — 1986 Chevrolet Suburban, p.22.
GM Heritage factory kit — 1988 Chevrolet Suburban, p.19.
GM Heritage factory kit — 1989 Chevrolet Suburban, p.17.
GM Heritage factory kit — 1990 Chevrolet Suburban, p.19.
GM Heritage factory kit — 1991 Chevrolet Suburban, p.19.

This page aggregates every documented appearance of F58 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.