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Timbren
®
SES
Suspension Enhancement Systems
Timbren
®
Suspension Enhancement Systems
Model
Year
2WD Front
2WD Rear
4WD Front
4WD Rear
Remarks
C30, C3500
1988-00
GMFC1588H GMRCK35
—
—
1973-87
GMFC15
GMRC30
—
—
1968-72
GMFC15
GMRP30
—
—
COLORADO, CANYON
2015
GMFC2A
GMRCCA
GMFC4A
GMRCCA
2004-12
GMFC2
GMRCC
GMFC4
GMRCC
K20, K2500
1996-00
—
—
GMFK25S
GMRCK25
With front cast lower control arm
1988-98
—
—
GMFK35C
GMRCK25
With front stamped lower control
arm
1970-87
—
—
GMFK10
GMRK10
K30, K350
1970-87
—
—
GMFK10
GMRK30
K30, K3500
1996-00
—
—
GMFK25S
GMRCK35
With front cast lower control arm
1988-96
—
—
GMFK35C
GMRCK35
With front stamped lower control
arm
S10 ZR2
1994-04
—
—
GMFS10
GMRS10A
S10, S15, SONOMA
2000-04
GMFS10
GMRS10B
GMFS10
GMRS10B
1975-99
GMFS10
GMRS10A
GMFS10
GMRS10A
Cab and Chassis, Conventional
Model
Year
2WD Front
2WD Rear
4WD Front
4WD Rear
Remarks
3500 HD
2007-10
GMFK25S
GMRCK35S
GMFK25S
GMRCK35S
3500 SIERRA, SILVERADO 2011-15
GMFK25D
GMRCK25D GMFK25D
GMRCK25D
2006-10
GMFK25S
GMRCK35S
GMFK25S
GMRCK35S
Single rear wheel
2001-10
GMFK25S
GMRCK35C
GMFK25S
GMRCK35C
Excluding single rear wheel
C30, C3500, K30, K3500
1996-00
GMFC1588H GMRC30
GMFK25S
GMRC30
With front cast lower control arm
1990-96
GMFC1588H GMRC30
GMFK35C
GMRC30
With front stamped lower contl arm
1973-89
GMFC15
GMRC30
GMFK10
GMRK30
C3500 HD
1991-04
GMF35HDA
GMR35HDM —
—
With leaf spring front suspension
Severe Service - Pickup and Cab & Chassis
Model
Year
2WD Front
2WD Rear
4WD Front
4WD Rear
Remarks
2500, 3500 SIERRA,
SILVERADO
2011-15
GMFK25D
GMRTT35D
GMFK25D
GMRTT35D
C/K, 20/30, 2500/3500
2001-10
GMFK25S
GMRTT35S
GMFK25S
GMRTT35S
Pickup style
1990-00
GMFC1588H GMRCK35MA GMFK25S
GMRCK35MA
Pickup style
C/K, 30/3500
1990-00
GMFC1588H GMRTTC35
GMFK25S
GMRTTC35
Cab & Chassis style
C/K,30/3500
2001-09
GMFK25S
GMRTT35C
GMFK25S
GMRTT35C
Cab & Chassis style
C20/2500, C30,3500,
K30/3500
1975-89
GMFC15
GMRTTC30
GMFK10
GMRTTK30
Medium and Heavy Duty - Cab and Chassis, Conventional
Model
Year
2WD Front
2WD Rear
4WD Front
4WD Rear
Remarks
4500, 5500, 6500, 7500
2005-09
GMF55AWD —
GMRC55
GMRTKM
All wheel drive
2003-09
GMFTK
—
GMRC55
GMRTKM
Excluding all wheel drive
6500
2003-09
GMFTKLP
—
GMRC55
GMRTKM
LoPro
C50, C60, C70, C6000, C7000 1973-90
GMFC70
—
GMRC70
—
TOPKICK & KODIAK C60,
C70, C6000, C7000
1991-02
GMFTK
—
GMRC55
GMRTKM
Except LoPro
1991-02
GMFTKLP
—
GMRC55
GMRTKM
LoPro
Medium and Heavy Duty - Cab Forward
Model
Year
2WD Front
2WD Rear
4WD Front
4WD Rear
Remarks
T5500, T6500, T7500, T8500 1997-09
GMFTK
—
GMRC55
GMRTKM
W35, W3500
1998-09
GMFW4C
—
GMRW35
GMRW55
W4/4000/4500,
W5,5000,5500
1988-09
GMFW4C
—
GMRW4A
GMRW55
W7, 7000
1988-96
GMFW7
—
RES0S1
(d)
URMDB
(d)
(d) drilling required, (p) professional installation required, (w) welding required, (wd) welding/drilling required, (b/o) bolt-on
GM
Light Duty Pickup Trucks
Continued