Fabtech 11-19 GM 2500HD 2WD/4WD 4in Performance System w/DL Shocks

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. 4in. BASIC SYS W/DLSS SHKS 2011-18 GM 2500HD 2WD/4WD TIRE SIZE - 35/13.50R18 WHEEL - 18X9 W/5 3/4" BS W/MINOR TRIMMING; TIRE SIZE - 35/13.50R20 WHEEL - 20X9 W/5 3/4" BS W/MINOR TRIMMING; 14. CAN NOT USE OEM WHEEL AND TIRE.; 60. FITS EXTENDED AND CREW CAB MODELS ONLY.; 55. MUST USE AFTERMARKET 18" WHEELS OR LARGER. Fitment: Chevrolet Silverado 2500 HD High Country 2015 to 2018 Chevrolet Silverado 2500 HD LT 2011 to 2018 Chevrolet Silverado 2500 HD LTZ 2011 to 2018 Chevrolet Silverado 2500 HD WT 2011 to 2018 Chevrolet Silverado 3500 HD High Country 2018 Chevrolet Silverado 3500 HD LT 2018 Chevrolet Silverado 3500 HD LTZ 2018 Chevrolet Silverado 3500 HD WT 2018 GMC Sierra 2500 HD Base 2015 to 2019 GMC Sierra 2500 HD Denali 2011 to 2019 GMC Sierra 2500 HD SLE 2011 to 2019 GMC Sierra 2500 HD SLT 2011 to 2019 GMC Sierra 2500 HD WT 2011 to 2014 GMC Sierra 3500 HD Base 2018 to 2019 GMC Sierra 3500 HD Denali 2018 GMC Sierra 3500 HD SLE 2018