Fabtech 14-18 GM C/K1500 P/U w/oE Alm Or Stmp Stl UCA 4in Basic Sys w/Perf Shks

Fabtech's new 4" crossmember systems utilize their proven heavy duty construction and design features found in their 6" systems but with less lift for use with 33" tall tires. These 4" systems feature high arched lower control arm crossmembers constructed of 1/4" thick steel for maximum strength. The Fabtech ductile iron steering knuckles retain the stock track width keeping tires under the fender for a clean appearance. Rear lift is accomplished with a block and u-bolt configuration. The Basic System includes front coilover spacers that utilize the factory Coilover shocks. Rear shock options include Performance or Stealth monotube shocks.
Performance Lift System w/Shocks; 4 in. Lift; w/Rear Performance Shocks;
TIRE SIZE - 33/12.50R17 WHEEL - 17X8 W/4 1/2" BS W/MINOR TRIMMING; TIRE SIZE - 275/65R18 WHEEL - 18X8 W/4 1/2" BS W/MINOR TRIMMING; TIRE SIZE - 295/55R20 WHEEL - 20X9 W/5" BS W/MINOR TRIMMING; 8. WILL NOT FIT ALL WHEEL DRIVE MODELS.; 14. CAN NOT USE OEM WHEEL AND TIRE.; 17. DOES NOT FIT STANDARD CAB.; 129. FOR USE ON VEHICLES WITH POWER STEERING ONLY.; 166. WILL NOT FIT MODELS WITH FACTORY MAGNERIDE SHOCKS.

Fitment:
2014 Chevrolet Silverado 1500
2014 GMC Sierra 1500
2015 Chevrolet Silverado 1500
2015 GMC Sierra 1500
2016 Chevrolet Silverado 1500
2016 GMC Sierra 1500
2017 Chevrolet Silverado 1500
2017 GMC Sierra 1500
2018 Chevrolet Silverado 1500
2018 GMC Sierra 1500