Fabtech 11-19 GM 3500HD 2WD/4WD 6in RTS System w/Perf. Shocks

Fabtechs cutting edge RTS(TM) system has now been developed for the all new GM HD platform. The 6 RTS(TM) utilizes a patent pending bracket system that keep the torsion bars raised up, in the stock location. This feature provides superior ground clearance at the frame as there are no torsion bars hanging down to become high centered on or damaged when offroading.. The 6 RTS(TM) system has been designed with unitized bracketry to retain the four front compression stops of the vehicle as GM intended. This distributes impact loads across a wide section of the frame rather than at a single point.High arched crossmembers and front differential skid plate are constructed of 1/4 thick steel to resist bending from hard front suspension impacts. Only 1/4 thick steel provides the rigidity and strength necessary to relocate the torsion bars, bump stops and lower control arms properly. Minimal heavy duty bracketry allow for a fast installation time with only two holes to drill and no cutting of the front diff housing. The 6 RTS(TM) system allows the use of both 18 and 20 diameter wheels. 6in. RTS SYS W/PERF SHKS 2011-18 GM 3500HD 2WD/4WD TIRE SIZE - 35/13.50R18 WHEEL - 18X9 W/5 3/4" BS W/MINOR TRIMMING; TIRE SIZE - 35/13.50R20 WHEEL - 20X10 W/5 3/4" BS W/MINOR TRIMMING; TIRE SIZE - 37/13.50R20 WHEEL - 20X10 W/5 3/4" BS W/MINOR TRIMMING; TIRE SIZE - 355/65R18 WHEEL - 18X9 W/5 3/4" BS W/MINOR TRIMMING; 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 2014 to 2018 Chevrolet Silverado 2500 HD LTZ 2014 to 2018 Chevrolet Silverado 2500 HD WT 2014 to 2018 Chevrolet Silverado 3500 HD High Country 2015 to 2019 Chevrolet Silverado 3500 HD LT 2011 to 2019 Chevrolet Silverado 3500 HD LTZ 2011 to 2019 Chevrolet Silverado 3500 HD WT 2011 to 2019 GMC Sierra 2500 HD Base 2015 to 2018 GMC Sierra 2500 HD Denali 2014 to 2018 GMC Sierra 2500 HD SLE 2014 to 2018 GMC Sierra 2500 HD SLT 2014 to 2018 GMC Sierra 2500 HD WT 2014 GMC Sierra 3500 HD Base 2015 to 2018 GMC Sierra 3500 HD Denali 2011 to 2018 GMC Sierra 3500 HD SLE 2011 to 2018 GMC Sierra 3500 HD SLT 2011 to 2018 GMC Sierra 3500 HD WT 2011 to 2014