Arm, left torsion bar spring adjustment (C)

Years 1999–06 Models 11 Factory citations 38

Also described as Torsion bar spring adjustment arm (C)Torsion bar spring adjuster (C)Arm, torsion bar spring adjustment (C)Torsion bar adjuster, left (C)

Also documented for Cadillac GMC Oldsmobile

Documented applications

Avalanche — GMT800 (2002–2006)

2002, 2004–2006 Factory-verified

the 2002 list abbreviates LH and Adj

GM factory document — 2002 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 — 2004 Chevrolet Avalanche, p.33.
GM Heritage factory kit — 2005 Chevrolet Avalanche, p.32.

Blazer — S-10 second generation (1995–2005)

2001–2005 Factory-verified

GM factory document — 2001 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2002 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2003 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2004 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2005 chevrolet blazer 4wd rpo code list, p.1.

C/K pickup — GMT400 (1988–2000)

1999, 2000 Factory-verified

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.

Colorado — GMT355 (2004–2012)

2004 Factory-verified

GM factory document — 2004 chevrolet colorado pickup 2wd rpo code list, p.1.

S-10 pickup — Second generation (1994–2004)

1999, 2001–2004 Factory-verified

1999 from the S-10 Electric list

GM factory document — 1999 chevrolet s10 electric rpo code list, p.1.
GM factory document — 2001 chevrolet s10 pickup 4wd rpo code list, p.1.
GM factory document — 2002 chevrolet s10 pickup 4wd rpo code list, p.1.
GM factory document — 2003 chevrolet s10 pickup 4wd rpo code list, p.1.
GM factory document — 2004 chevrolet s10 pickup 4wd rpo code list, p.1.

Silverado — GMT800 (1999–2007)

2002, 2004 Factory-verified

GM factory document — 2002 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 Heritage factory kit — 2004 Chevrolet Silverado, p.65.

Silverado HD — GMT800 (2001–2007)

2002, 2004 Factory-verified

GM factory document — 2002 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.

Suburban — GMT400 (1992–1999)

1999 Factory-verified

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

Suburban — GMT800 (2000–2006)

2002, 2004–2006 Factory-verified

the 2002 list abbreviates LH and Adj

GM factory document — 2002 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 — 2002 Chevrolet Suburban, p.36.
GM Heritage factory kit — 2004 Chevrolet Suburban, p.40.

Tahoe — GMT400 (1995–1999)

1999 Factory-verified

GM factory document — 1999 chevrolet tahoe 2wd rpo code list, p.1.

Tahoe — GMT800 (2000–2006)

2002, 2004–2006 Factory-verified

the 2002 list abbreviates LH and Adj

GM factory document — 2002 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 — 2002 Chevrolet Tahoe, p.29.

This page aggregates every documented appearance of FF4 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.