The 4'' Ultimate System is available with our Uniball Upper Control Arms that feature .120'' wall 4130 Chromoly tubing with a 1.50'' OD 1'' FK Stainless PTFE Uniballs for 9'' of front wheel travel. The system also includes heavy duty ductile iron steering knuckles and forged adjusting torsion bar keys to provide the proper amount of lift without CV bind. The system will level the stance of the vehicle compared to the factory nose down rake with no change to the rear suspension. For those customers that require a factory nose down appearance an optional 1'' rear block kit is available. Uniball Upper Control Arms are available separately as an upgrade to stock, previously installed Fabtech'suspensions or other aftermarket suspension systems.

This Part Fits:

Year	Make	Model	Submodel
2015-2019	Chevrolet	Silverado 2500 HD	High Country
2011-2019	Chevrolet	Silverado 2500 HD	LT
2011-2019	Chevrolet	Silverado 2500 HD	LTZ
2011-2019	Chevrolet	Silverado 2500 HD	WT
2015-2019	Chevrolet	Silverado 3500 HD	High Country
2011-2019	Chevrolet	Silverado 3500 HD	LT
2011-2019	Chevrolet	Silverado 3500 HD	LTZ
2011-2019	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
2015-2019	GMC	Sierra 3500 HD	Base
2011-2019	GMC	Sierra 3500 HD	Denali
2011-2019	GMC	Sierra 3500 HD	SLE
2011-2019	GMC	Sierra 3500 HD	SLT
2011-2014	GMC	Sierra 3500 HD	WT