CHEVROLET - LEVELING KITS; SILVERADO 1500 2WD / CLASSIC; 1999-2007; *Requires The Use Of 66-7816A (ReadyLIFT® Universal Torsion Key Unloading Tool); Rear coil spacers may be required to achieve a level stance ** - Do not use the supplied shock extensions for this application; 2WD - 6-LUG
GMC - LEVELING KITS; SIERRA 1500 2WD CLASSIC; 1999-2007; *Requires the use of 66-7816A (ReadyLIFT® Universal Torsion Key Unloading Tool); Rear coil spacer may be required to achieve a level stance- ** Do not use the supplied shock extensions for this application; 2WD - 6-LUG