2003-2004 Chevrolet Tahoe (listed for LS / LT / Z71 (5.3L V8 / V8); For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; requires 4-6 in. lift; Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package; Without Z55 Autoride Suspension Package Without Police Package With Crossmember Lift Kit; Excludes Police Package; Fits Vehicles With 4-6" Front Lift Crossmember Kit); 2005 Chevrolet Tahoe (listed for LS / LT / Z71 (5.3L V8 / V8); For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; requires 4-6 in. lift; Without Z55 Autoride Suspension Package Without Police Package With Crossmember Lift Kit; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package; Excludes Police Package); 2006 Chevrolet Tahoe (listed for Base / LS / LT / Z71 (5.3L V8 / V8); For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; requires 4-6 in. lift; Without Z55 Autoride Suspension Package Without Police Package With Crossmember Lift Kit; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package; Excludes Police Package); 2002 Chevrolet Avalanche 1500 (Without Electronic Suspension Series - 5100 Series Front Lifted Height - 4-6"; Without Electronic Suspension With Crossmember Lift Kit; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Not For Use with Quadrasteer; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; requires 4-6 in. lift; Not For Use with ZX3 Electronic Suspension); 2003-2006 Chevrolet Avalanche 1500 (Without Electronic Suspension Series - 5100 Series Front Lifted Height - 4-6"; Without Electronic Suspension With Crossmember Lift Kit; Not For Use with Quadrasteer; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2007 Chevrolet Silverado 1500 Classic (listed for Hybrid (5.3L V8); LS / WT (5.3L V8 / V6 / V8); LT (5.3L V8 / 6.0L V8 / V8); 4WD; Fits Vehicles With 4-6" Front Lift; Without ZX3 Electronic Suspension Package; Not For Use with Electronic Suspension GMT800 Body Style; requires 4 in. lift; requires 6 in. lift; For Front Lifted Height - 4-6"); 1999-2001 Chevrolet Silverado 1500 (4WD; Without ZX3 Electronic Suspension Package; Fits Vehicles With 4-6" Front Lift; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4-6 in. lift; For Front Lifted Height - 4-6"; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension 4WD); 2002 Chevrolet Silverado 1500 (5.3L V8 / V6 / V8 only; 4WD; Without ZX3 Electronic Suspension Package Without Quadrasteer; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4-6 in. lift; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension; Excludes Quadrasteer 4WD); 2003 Chevrolet Silverado 1500 (listed for Base / LS / LT / WT (5.3L V8 / V6 / V8); 4WD; Without ZX3 Electronic Suspension Package Without Quadrasteer; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4-6 in. lift; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension; Excludes Quadrasteer 4WD; Front Lifted Height - 4-6"); 2004 Chevrolet Silverado 1500 (listed for Base / WT / Z71 (5.3L V8 / V6 / V8); Hybrid (5.3L V8 / V8); LS / LT (5.3L V8 / 6.0L V8 / V6 / V8); 4WD; Without ZX3 Electronic Suspension Package Without Quadrasteer; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4-6 in. lift; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension; requires 4 in. lift; requires 6 in. lift; Excludes Quadrasteer); 2005 Chevrolet Silverado 1500 (listed for Base (5.3L V8 / V6 / V8); Hybrid (5.3L V8 / V8); LS / LT (5.3L V8 / 6.0L V8 / V6 / V8); 4WD; Without ZX3 Electronic Suspension Package Without Quadrasteer; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension; Excludes Quadrasteer 4WD; For Front Lifted Height - 4-6"; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4 in. lift; requires 6 in. lift); 2006 Chevrolet Silverado 1500 (listed for Hybrid (5.3L V8 / V8); LS / WT (5.3L V8 / V6 / V8); LT (5.3L V8 / 6.0L V8 / V8); 4WD; Without ZX3 Electronic Suspension Package; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension 4WD; For Front Lifted Height - 4-6"; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4 in. lift; requires 6 in. lift); 2007 Chevrolet Silverado 1500 (listed for Classic Hybrid (V8); Classic LS / Classic WT (5.3L V8 / V6 / V8); Classic LT (5.3L V8 / 6.0L V8 / V8); Series - 5100 Series Old Body Style GMT800 Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension 4WD; For Front Lifted Height - 4-6"); 2000-2001 Chevrolet Suburban 1500 (listed for Base / LS / LT (5.3L V8 / V8); Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package Crossmember Kit; Without Z55 Autoride Suspension Package With Crossmember Lift Kit; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2002-2003 Chevrolet Suburban 1500 (listed for LS / LT (5.3L V8 / V8); Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package Crossmember Kit; Without Z55 Autoride Suspension Package With Crossmember Lift Kit; Not For Use with Quadrasteer; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2004-2005 Chevrolet Suburban 1500 (listed for LS / LT / Z71 (5.3L V8 / V8); Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package Crossmember Kit; Without Z55 Autoride Suspension Package With Crossmember Lift Kit; Not For Use with Quadrasteer; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2006 Chevrolet Suburban 1500 (listed for Base / LS / LT / Z71 (5.3L V8 / V8); LTZ (6.0L V8); Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package Crossmember Kit; Without Z55 Autoride Suspension Package With Crossmember Lift Kit; Not For Use with Quadrasteer; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; requires 4-6 in. lift; Fits Vehicles With 4-6" Front Lift); 2007 Gmc Sierra 1500 Classic (listed for Hybrid (5.3L V8); SL / WT (5.3L V8 / V6 / V8); SLE (5.3L V8 / 6.0L V8 / V8); SLT (5.3L V8 / 6.0L V8); 4WD; Fits Vehicles With 4-6" Front Lift; For Front Lifted Height - 4-6"; Without ZX3 Electronic Suspension Package; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; For Use with GMT800 Body Style GMT800 Body Style; requires 4 in. lift; requires 6 in. lift); 1999-2001 GMC Sierra 1500 (listed for SL / SLE / SLT (5.3L V8 / V6 / V8); 4WD; Without ZX3 Electronic Suspension Package; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension 4WD; For Front Lifted Height - 4-6"; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4-6 in. lift); 2002 GMC Sierra 1500 (listed for Base / HT / SL / SLE / SLT / WT (5.3L V8 / V6 / V8); 4WD; Without ZX3 Electronic Suspension Package Without Quadrasteer; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4-6 in. lift; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension; Excludes Quadrasteer 4WD); 2003 GMC Sierra 1500 (listed for Base / SL / SLE / SLT / WT (5.3L V8 / V6 / V8); 4WD; Without ZX3 Electronic Suspension Package Without Quadrasteer; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4-6 in. lift; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension; Excludes Quadrasteer 4WD); 2004 GMC Sierra 1500 (listed for Base / SLE / SLT / WT (5.3L V8 / 6.0L V8 / V6 / V8); 4WD; Without ZX3 Electronic Suspension Package Without Quadrasteer; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4-6 in. lift; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension; Excludes Quadrasteer 4WD); 2005 GMC Sierra 1500 (listed for Base / WT (5.3L V8 / V6 / V8); Hybrid (5.3L V8 / V8); SLE / SLT (5.3L V8 / 6.0L V8 / V8); 4WD; Without ZX3 Electronic Suspension Package Without Quadrasteer; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension; Excludes Quadrasteer 4WD; For Front Lifted Height - 4-6"; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4 in. lift; requires 6 in. lift); 2006 GMC Sierra 1500 (listed for Hybrid (5.3L V8 / V8); SL / WT (5.3L V8 / V6 / V8); SLE / SLT (5.3L V8 / 6.0L V8 / V8); 4WD; Without ZX3 Electronic Suspension Package; Fits Vehicles With 4-6" Front Lift; Series - 5100 Series Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension 4WD; For Front Lifted Height - 4-6"; Not For Use with Quadrasteer; Not For Use with Electronic Suspension; Not For Use with ZX3 Electronic Suspension; requires 4 in. lift; requires 6 in. lift); 2007 GMC Sierra 1500 (listed for Classic Hybrid (V8); Classic SL / Classic WT (5.3L V8 / V6 / V8); Classic SLE (5.3L V8 / 6.0L V8 / V8); Classic SLT (6.0L V8 / V8); Series - 5100 Series Old Body Style GMT800 Front Lifted Height - 4-6"; Excludes ZX3 Electronic Suspension 4WD; For Front Lifted Height - 4-6"); 2000-2001 GMC Yukon Xl 1500 (listed for SLE / SLT (5.3L V8 / V8); Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package Crossmember Kit; Without Z55 Autoride Suspension Package With Crossmember Lift Kit; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2002-2005 GMC Yukon Xl 1500 (listed for SLE / SLT (5.3L V8 / V8); Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package Crossmember Kit; Without Z55 Autoride Suspension Package With Crossmember Lift Kit; Not For Use with Quadrasteer; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2006 GMC Yukon Xl 1500 (listed for SL / SLE / SLT (5.3L V8); Without Z55 Autoride Suspension Package With Crossmember Lift Kit; Not For Use with Quadrasteer; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; For Front Lifted Height - 4-6"; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2000 GMC Yukon (listed for SLE / SLT (5.3L V8 / V8); Series - 5100 Series New Body Style GMT800 Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package; Without Z55 Autoride Suspension Package Without Police Package With Crossmember Lift Kit; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; Excludes Police Package; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2001-2005 GMC Yukon (listed for SLE / SLT (5.3L V8 / V8); Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package; Without Z55 Autoride Suspension Package Without Police Package With Crossmember Lift Kit; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; Excludes Police Package; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift); 2006 GMC Yukon (listed for SL / SLE / SLT (5.3L V8 / V8); Series - 5100 Series Front Lifted Height - 4-6"; For Front Lifted Height - 4-6"; Excludes Z55 Autoride Suspension Package; Without Z55 Autoride Suspension Package Without Police Package With Crossmember Lift Kit; For Use with Crossmember Lift Kit; Not For Use with Electronic Suspension; Not For Use with Z55 Autoride Suspension System; Excludes Police Package; Fits Vehicles With 4-6" Front Lift Crossmember Kit; requires 4-6 in. lift)