Fabtech has developed multiple systems for late model GM T900 platform SUVs and SUTs. Common to these systems is Fabtechs proven one piece high arched lower crossmember design with an integrated differential skid plate for solid support of the front suspension. Special attention was given to the design of replacement extended length steering knuckles to keep the track width of the vehicle near stock while retaining turning radius for easy maneuverability in tight areas. All rear systems feature extended length tubular upper and lower link arms with an oversized Trac bar relocation bracket to properly place the axle under the vehicle with zero driveline vibration. AutoRide and non AutoRide specific rear coil springs maintain proper ride height on all models. The Basic System features the above mentioned components along with front strut assembly spacers and rear performance coil springs. This system provides a stock like ride and is compatible with all AutoRide models. Fabtechs Performance System provides the Dirt Logic 2.5 coilover front shocks for superior damping. This Performance system will provide a supple highway ride with outstanding offroad damping capabilities for the best of both worlds. Installation of all systems does not require relocation of the Rack and Pinion or disassembly of the front strut assemblies. Clear up to 35/1250R20 tires w/ 20x9 wheels w/ 5a� BS w/ minor trimming. This product ships in approximately 1 days