Spring, front, heavy duty

Years 1963–09, 2023, 2025–27 Models 24 Factory citations 124

Also described as Heavy Duty Front Spring EquipmentHeavy duty front springsSpecial heavy duty front suspensionHeavy front springsHD front springsSpring, front, heavy-dutySuspension, front, heavy dutySprings, front, heavy dutySprings, front, heavy-duty (increased torsion bar rate)Heavy Duty Front Spring Package

Also documented for Cadillac GMC

Documented applications

Chevelle / El Camino

1965 Confirmed

Impala / Full-Size

1963–70s (varies) Confirmed

Nova / Chevy II

1963 Confirmed

C/K Trucks

1964 Factory-verified

GM Heritage factory kit — 1964 Chevrolet Truck, p.15.
1967–72 Confirmed

—
1973–82 Confirmed

—

Avalanche — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet avalanche 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Avalanche, p.53.
GM Heritage factory kit — 2005 Chevrolet Avalanche, p.32.

Avalanche — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 chevrolet avalanche 2wd rpo code list, p.1.

Blazer (full-size, K Blazer) — GMT400 (1992–1994)

1992–1994 Factory-verified

front torsion bars; the 1992 page includes heavy duty front and rear shocks; not with L56 (1994)

GM Heritage factory kit — 1992 Chevrolet Blazer, p.15.
GM Heritage factory kit — 1993 Chevrolet Blazer, p.10.
GM Heritage factory kit — 1994 Chevrolet Blazer, p.10.

Blazer (full-size, K5) — Square body (1983–1991)

1984–1986, 1990, 1991 Factory-verified

2250 lb each; includes heavy duty front and rear shock absorbers; for snowplow use (1984–1986) or front mounted accessories (1990–1991)

GM Heritage factory kit — 1984 Chevrolet Blazer RV Full Size, p.6.
GM Heritage factory kit — 1985 Chevrolet Blazer RV Full Size, p.12.
GM Heritage factory kit — 1986 Chevrolet Blazer, p.13.
GM Heritage factory kit — 1990 Chevrolet Blazer, p.16.
GM Heritage factory kit — 1991 Chevrolet Blazer, p.16.

S-10 Blazer — First generation (1983–1994)

1984–1989, 1991–1992, 1994 Factory-verified

only in: 4WD; includes F51; recommended for snowplow use; the 1991–1994 pages name it front springs (torsion bars), heavy duty

GM Heritage factory kit — 1984 Chevrolet S 10 Blazer, p.10.
GM Heritage factory kit — 1985 Chevrolet S 10 Blazer, p.15.
GM Heritage factory kit — 1986 Chevrolet S 10 Blazer, p.10.
GM Heritage factory kit — 1987 Chevrolet S 10 Blazer, p.45.
GM Heritage factory kit — 1988 Chevrolet S 10 Blazer, p.12.
GM Heritage factory kit — 1989 Chevrolet Blazer, p.19.
GM Heritage factory kit — 1991 Chevrolet S 10 Blazer, p.18.
GM Heritage factory kit — 1992 Chevrolet S 10 Blazer, p.20.
GM Heritage factory kit — 1994 Chevrolet S 10 Blazer, p.23.

C/K pickup — GMT400 (1988–2000)

1989–2000 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.
GM Heritage factory kit — 1989 Chevrolet Truck, p.28.
GM Heritage factory kit — 1990 Chevrolet Truck, p.37.
GM Heritage factory kit — 1991 Chevrolet Truck, p.36.
GM Heritage factory kit — 1992 Chevrolet Truck, p.34.
GM Heritage factory kit — 1993 Chevrolet Truck, p.35.
GM Heritage factory kit — 1994 Chevrolet Truck, p.8.
GM Heritage factory kit — 1995 Chevrolet Truck, p.13.
GM Heritage factory kit — 1996 Chevrolet Truck, p.57.
GM Heritage factory kit — 1997 Chevrolet Truck, p.25.

C/K pickup — Square body (1983–1991)

1984–1987 Factory-verified

the kit pages also print F6O

GM Heritage factory kit — 1984 Chevrolet Truck, p.44.
GM Heritage factory kit — 1985 Chevrolet Truck, p.42.
GM Heritage factory kit — 1986 Chevrolet Truck, p.156.
GM Heritage factory kit — 1987 Chevrolet Truck, p.57.

Chevy Van — Second generation G-series (1983–1996)

1983, 1984, 1986, 1988–1990, 1993 Factory-verified

1984 from the 1984 data book pages in the kit file labelled 1985.

GM Heritage factory kit — 1983 Chevrolet Vandura, p.17.
GM Heritage factory kit — 1985 Chevrolet G Van, p.20.
GM Heritage factory kit — 1986 Chevrolet G Van, p.66.
GM Heritage factory kit — 1988 Chevrolet Vandura, p.23.
GM Heritage factory kit — 1989 Chevrolet G Van, p.6.
GM Heritage factory kit — 1990 Chevrolet G Van, p.8.
GM Heritage factory kit — 1993 Chevrolet G Van, p.66.

S-10 pickup — First generation (1982–1993)

1985–1989, 1991–1993 Factory-verified

only in: 4WD; includes F51 (1985–1989, 1991–1992); recommended for snowplow use (1985, 1987–1988)

GM Heritage factory kit — 1985 Chevrolet S 10, p.26.
GM Heritage factory kit — 1986 Chevrolet S 10, p.18, p.17.
GM Heritage factory kit — 1987 Chevrolet S 10, p.24.
GM Heritage factory kit — 1988 Chevrolet S 10, p.20.
GM Heritage factory kit — 1989 Chevrolet S 10, p.24.
GM Heritage factory kit — 1991 Chevrolet S 10, p.22.
GM Heritage factory kit — 1992 Chevrolet S 10, p.17.
GM Heritage factory kit — 1993 Chevrolet S 10, p.10.

Silverado — GMT800 (1999–2007)

1999–2007 Factory-verified

GM factory document — 1999 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2000 Chevrolet Truck and Silverado, p.56.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.59.

Silverado — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Silverado HD — GMT800 (2001–2007)

2001–2007 Factory-verified

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.

Silverado HD — GMT900 (2007–2014)

2007–2008 Factory-verified

GM factory document — 2007 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet silverado 2wd rpo code list, p.1.

Silverado HD (T1XX, 2020–2027)

2023, 2025–2027 Factory-verified

only in: 2500 HD, 3500 HD, 3500 HD chassis cab; the pickup lists print "Heavy Duty Front Spring/Camper Package"

GM factory document — 2023 chevrolet 23silverado 2500 3500hd electrical body builder sm en us 2022oct12, p.11.
GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado 3500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado 3500 hd cc fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 3500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 3500 hd cc fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 3500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 3500 hd cc fleet order guide rpo codes, p.1.

Suburban — GMT400 (1992–1999)

1992–1999 Factory-verified

GM Heritage factory kit — 1992 Chevrolet Suburban, p.19.
GM Heritage factory kit — 1993 Chevrolet Suburban, p.4.
GM Heritage factory kit — 1994 Chevrolet Suburban, p.14.
GM Heritage factory kit — 1995 Chevrolet Suburban, p.13.
GM Heritage factory kit — 1996 Chevrolet Suburban, p.7.
GM Heritage factory kit — 1997 Chevrolet Suburban, p.15.
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.

Suburban — GMT800 (2000–2006)

2000–2006 Factory-verified

the 2000 list words it as provisions for an increased torsion bar rate

GM factory document — 2000 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2001 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy suburban 2wd rpo code list, p.1.
GM Heritage factory kit — 2000 Chevrolet Suburban, p.46.
GM Heritage factory kit — 2002 Chevrolet Suburban, p.36.
GM Heritage factory kit — 2004 Chevrolet Suburban, p.40.

Suburban — GMT900 (2007–2014)

2009 Factory-verified

GM factory document — 2009 chevrolet chevy suburban 2wd rpo code list, p.1.

Suburban — Square body (1983–1991)

1983, 1985–1991 Factory-verified

2250 lb each; includes heavy duty front and rear shocks without Z75; for snowplow use (to 1988) or front mounted accessories (1990–1991)

GM Heritage factory kit — 1983 Chevrolet Suburban, p.18.
GM Heritage factory kit — 1985 Chevrolet Suburban, p.20.
GM Heritage factory kit — 1986 Chevrolet Suburban, p.22.
GM Heritage factory kit — 1987 Chevrolet Suburban, p.27.
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.

Tahoe — GMT400 (1995–1999)

1995–1999 Factory-verified

GM factory document — 1998 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 1999 chevrolet tahoe 2wd rpo code list, p.1.
GM Heritage factory kit — 1995 Chevrolet Tahoe, p.5.
GM Heritage factory kit — 1996 Chevrolet Tahoe, p.18.
GM Heritage factory kit — 1997 Chevrolet Tahoe, p.15.
GM Heritage factory kit — 1998 Chevrolet Tahoe, p.43.
GM Heritage factory kit — 1999 Chevrolet Tahoe, p.15.

Tahoe — GMT800 (2000–2006)

2000–2006 Factory-verified

the 2000 list words it as provisions for an increased torsion bar rate

GM factory document — 2000 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2001 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet tahoe 2wd rpo code list, p.1.
GM Heritage factory kit — 2000 Chevrolet Tahoe, p.46.
GM Heritage factory kit — 2001 Chevrolet Tahoe, p.43.

This page aggregates every documented appearance of F60 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.