This high quality 6" system retains the factory track width keeping the tires under the fenders for a clean appearance. It has been designed to clear 33" tall tires while providing a factory like ride quality. Heavy duty 1/4" thick steel lower control arm Crossmembers provide superior ground clearance while the integrated front differential Skid Plate adds protection to the drivetrain. The front differential is relocated in a manner to reduce driveline vibration when in 4 wheel drive mode at highway speeds. The system utilizes a simplistic upper Coilover spacer that does not require the disassembly of the shock for a quick installation. The factory rear shocks are retained with extended length mounts. Fabtech?s rear Coil Springs provide increased ride height with a comfortable highway ride. New upper and lower rear Link Arms re-positions the differential to the precise pinion angle to eliminate driveline vibration at all speeds. Rear extended length Sway Bar Links and heavy duty Track Bar Bracket retains the proper roll center of the vehicle for both on and offroad use. This system passes FMVSS 126 standards for stability control functionality as tested by an independent lab. All systems come with a Free 5 year 60,000 mile Powertrain Warranty.. Fabtech has designed a new 6" Suspension System for 2017-18 GM 1500 SUV's that retains the factory track width keeping the tires under the fenders for a clean appearance with a simplified install. Heavy duty 1/4" thick steel lower control arm Crossmembers provide superior ground clearance while the integrated front differential Skid Plate adds protection to the drivetrain. The front differential is relocated in a manner to reduce vibration when in the 4 Wheel Drive mode at highway speeds. The system utilizes a simplistic upper Coilover spacer that does not require the disassembly of the shock for a quick installation. The factory rear shocks are retained with extended length mounts. Fabtech's rear coil springs provide increased ride height with a comfortable highway ride quality. New upper and lower rear link arms reposition the differential to the precise pinion angle to eliminate driveline vibration at all speeds. Rear extended length Sway Bar Links and heavy duty Track Bar Bracket retains the proper roll center of the vehicle for both on and offroad use. This system passes FMVSS 126 standards for stability control functionality as tested by an independent lab. All systems come with a Free 5 year 60,000 mile Powertrain Warranty.. TIRE SIZE - 33/12.50R17 WHEEL - 17X8 W/5" BS W/MINOR TRIMMING; TIRE SIZE - 33/12.50R18 WHEEL - 18X9 W/5" BS W/MINOR TRIMMING; TIRE SIZE - 275/65R18 WHEEL - 18X9 W/5" BS W/MINOR TRIMMING; TIRE SIZE - 33/12.50R20 WHEEL - 20X9 W/5" 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.; 16. UTILIZES STOCK REAR SHOCKS.; 101. SOME MODELS MAY NOT SIT LEVEL AFTER INSTALL.; 132. WILL NOT FIT 2WD SUBURBAN.; 134. WILL NOT FIT 2WD YUKON XL MODELS.. Fabtech 17-18 GM C/K1500 SUV 2WD/4WD 6in Basic System Gen II. 6in. BASIC SYS GEN2 2017-18 GM C/K 1500 SUV. 6" BASIC SYS GEN2 2017-18 GM C/K 1500 SUV. 6" BASIC SYS GEN2 20. Suspension Lift Kit. 6in. BASIC SYS GEN2. Basic Lift System

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