Our Hummer system is constructed with extended steering knuckles and high clearance crossmembers. To properly address the H2īs fulltime transfer case we include a CV style front driveshaft with this system to provide smooth driveline operation. Also unique to this system is two 1/4" thick skid plates, one for the front differential and one for the transfer case. Rear lift on factory air bag H2īs comes from a super stout bag spacer while coil spring models receive replacement coil springs that are driver and passenger specific.