Suspension, heavy duty, front and rear

Years 1963–79, 1983–90 Models 12 Factory citations 29

Also described as Suspension, HD front & rearSpecial Front and Rear SuspensionSpecial Front & Rear SuspensionH.D. front & rear suspensionSpecial heavy duty front & rear suspensionHeavy-duty suspension, front and rearSuspension, heavy duty

Also documented for Buick Oldsmobile Pontiac

Documented applications

Camaro

1969 Confirmed

export, L6

Chevelle / El Camino

1964–1972 Factory-verified

GM Heritage factory kit — 1964 Chevrolet Chevelle, p.9.
GM Heritage factory kit — 1972 Chevrolet El Camino, p.9.

Corvette (C1 / C2)

1964 Factory-verified

$37.70; 82 built

GM Heritage factory kit — 1964 Chevrolet Corvette, p.17.
1965 Factory-verified

$37.70; 975 built

GM Heritage factory kit — 1965 Chevrolet Corvette, p.14.

Impala / Full-Size

1963–70s (varies) Factory-verified

GM Heritage factory kit — 1963 Chevrolet, p.12.

Nova / Chevy II

1964–1967 Factory-verified

GM Heritage factory kit — 1964 Chevrolet Nova, p.8.
GM Heritage factory kit — 1967 Chevrolet Nova, p.8.
1968–1969, 1971–1979 Factory-verified

GM Heritage factory kit — 1968 Chevrolet Nova Coupe, p.74.
GM Heritage factory kit — 1979 Chevrolet Nova, p.9.

Caprice — third generation, B-body (1983–1990)

1988–1990 Factory-verified

not with F41; standard on the wagon

GM Heritage factory kit — 1988 Chevrolet Caprice, p.8.
GM Heritage factory kit — 1989 Chevrolet Caprice, p.42.
GM Heritage factory kit — 1990 Chevrolet Caprice, p.138.

Cavalier — first generation (1982–1987)

1983–1987 Factory-verified

not on wagons (1986–1987 also not on the Z24); 1983 and 1985 from the suspension tables (the 1985 option line prints F4Q)

GM Heritage factory kit — 1983 Chevrolet Cavalier, p.19.
GM Heritage factory kit — 1984 Chevrolet Cavalier, p.12.
GM Heritage factory kit — 1985 Chevrolet Cavalier, p.16.
GM Heritage factory kit — 1986 Chevrolet Cavalier, p.36.
GM Heritage factory kit — 1987 Chevrolet Cavalier, p.36.

Celebrity — A-body (1982–1990)

1984–1986, 1988–1989 Factory-verified

1984–1986 and 1988: in the kits' suspension tables; 1989: not on the Eurosport; 1982–1983 and 1987 are not claimed: no dated page of those years prints the code (1982 p.23 has no readable model-year field)

GM Heritage factory kit — 1984 Chevrolet Celebrity, p.23.
GM Heritage factory kit — 1985 Chevrolet Celebrity, p.23.
GM Heritage factory kit — 1986 Chevrolet Celebrity, p.22.
GM Heritage factory kit — 1988 Chevrolet Celebrity, p.24.
GM Heritage factory kit — 1989 Chevrolet Celebrity, p.11.

Citation — X-body (1983–1985)

1983–1985 Factory-verified

named only in the suspension tables, which give its spring and wheel rates (stiffer than base and F41); the meaning follows the Celebrity doc

GM Heritage factory kit — 1983 Chevrolet Citation, p.20.
GM Heritage factory kit — 1984 Chevrolet Citation, p.15.
GM Heritage factory kit — 1985 Chevrolet Citation, p.16.

Corsica — L-body (1987–1996)

1988 Factory-verified

1989–1990 are not claimed: the 1989 and 1990 option-weight pages still list it, but neither year's order guide offers it (1989 offers only F41 on the base model); same description as cavalier-gen1

GM Heritage factory kit — 1988 Chevrolet Corsica, p.31.

Malibu — fourth generation, A-body (1983)

1983 Factory-verified

the sedan guide lists it; included with 9C1 and 9C6 (pp.14, 16)

GM Heritage factory kit — 1983 Chevrolet Malibu, p.21.

Monte Carlo — fourth generation (1983–1988)

1983–1984 Factory-verified

not with F41 (1984); the 1985–1988 guides do not offer it

GM Heritage factory kit — 1983 Chevrolet Monte Carlo, p.35.
GM Heritage factory kit — 1984 Chevrolet Monte Carlo, p.36.

This page aggregates every documented appearance of F40 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.