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.
This system qualifies for our 5/60 Powertrain Warranty. To find out more CLICK HERE
- Use 35/13.50R18 tire w/ 18x9 wheels w/ 5 3/4” BS w/ minor trimming
- Use 35/13.50R20 tire w/ 20x9 wheels w/ 5 3/4” BS w/ minor trimming
||Component Box 1
||Component Box 2
||Component Box 3 - 2500HD
||Front Stealth Shock
||Rear Stealth Shock
14. Can not use OEM wheel and tire.
55. Must use 18" wheels or larger.
60. Fits extended and crew cab models only.