Axle, rear, 5.13 ratio

Years 1984–93, 1998–00 Models 3 Factory citations 15

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Also described as Axle, rear, 5.13 ratio, heavy duty 10,000 lb capacity

Also documented for Cadillac GMC

Documented applications

C/K pickup — GMT400 (1988–2000)

1998–2000 Factory-verified

GM factory document — 1998 chevrolet chevy c pickup 2wd rpo code list, p.1.
GM factory document — 1999 chevrolet chevy c pickup 2wd rpo code list, p.1.
GM factory document — 2000 chevrolet chevy c pickup 2wd rpo code list, p.1.

Motor Home chassis (1983–1998)

1984–1993 Factory-verified

requires LL4 diesel in 1989; 1993 chart: Dana 5.13 ratio

GM Heritage factory kit — 1984 Chevrolet Motorhome, p.10.
GM Heritage factory kit — 1985 Chevrolet Motorhome, p.16.
GM Heritage factory kit — 1986 Chevrolet Motorhome, p.7.
GM Heritage factory kit — 1987 Chevrolet Motorhome, p.14.
GM Heritage factory kit — 1988 Chevrolet Motorhome, p.10.
GM Heritage factory kit — 1989 Chevrolet Motorhome, p.3.
GM Heritage factory kit — 1990 Chevrolet Motorhome, p.7.
GM Heritage factory kit — 1991 Chevrolet Motorhome, p.3.
GM Heritage factory kit — 1992 Chevrolet Motorhome, p.3.
GM Heritage factory kit — 1993 Chevrolet Motorhome, p.9.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

GM factory document — 1998 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 1999 chevrolet chevy suburban 2wd rpo code list, p.1.

This page aggregates every documented appearance of HC7 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.