Fabtech's new 4" crossmember systems utilize their proven heavy duty construction and design features for a robust suspension upgrade. The 4" system features high arched lower control arm crossmembers constructed of 1/4" thick steel for maximum strength. The Fabtech ductile iron steering knuckles retain the near stock track width keeping tires under the fender for a clean appearance. Rear lift is accomplished with a block and u bolt configuration.
Fitments
Year
Make
Model
Submodel
2015 - 2018
Chevrolet
Silverado 2500 HD
High Country
2011 - 2018
Chevrolet
Silverado 2500 HD
LT
2011 - 2018
Chevrolet
Silverado 2500 HD
LTZ
2011 - 2018
Chevrolet
Silverado 2500 HD
WT
2018
Chevrolet
Silverado 3500 HD
High Country
2018
Chevrolet
Silverado 3500 HD
LTZ
2018
Chevrolet
Silverado 3500 HD
WT
2015 - 2019
GMC
Sierra 2500 HD
Base
2011 - 2019
GMC
Sierra 2500 HD
Denali
2011 - 2019
GMC
Sierra 2500 HD
SLE
2011 - 2019
GMC
Sierra 2500 HD
SLT
2011 - 2014
GMC
Sierra 2500 HD
WT
2018
GMC
Sierra 3500 HD
Denali
2018
GMC
Sierra 3500 HD
SLE
2018
GMC
Sierra 3500 HD
SLT
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