Coil-Rite Air Helper Spring Kit Coil-Rite; Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; OEM Number W237604186 CADILLAC CHEVROLET GMC ACADIA AVALANCHE ESCALADE ESCALADE ESV ESCALADE EXT SRX SUBURBAN 1500 SUBURBAN 2500 TAHOE TERRAIN TRAVERSE YUKON YUKON XL 1500 YUKON XL 2500 BASE BLACK DIAMOND LS BLACK DIAMOND LT BLACK DIAMOND LTZ DENALI DENALI HYBRID HYBRID HYBRID PLATINUM LS LT LTZ LUXURY PERFORMANCE PLATINUM PPV PREMIUM SL SLE SLT SSV 2008 2009 2010 2011 2012 2013 2014 2.4L LAF (145) Ecotec 2.8L LAU (2792cc) 3.6L LLT (217) 3L LF1 (cc) 3L LFW (cc) 4.8L GEN IV LY2 Vortec (294) 5.3L GEN IV Flex LC9 Vortec (325) 5.3L GEN IV Flex LMG Vortec (325) 5.3L GEN IV LY5 Vortec (325) 6.2L Flex L94 (376) 6.2L Flex L9H (376) 6.2L GEN IV L92 Vortec (378) 6L GEN III Electric/Flex LZ1 Vortec(364) 6L GEN III Electric/Gas LFA Vortec (364) 6L GEN IV Flex L96 Vortec (364) 6L GEN IV L76 Vortec (364) ELECTRIC/FLEX ELECTRIC/GAS FLEX GAS Firestone Ride-Rite Firestone Ride-Rite Coil-Rite Air Helper Spring Kit - 4186 4186 Suspension Load Leveling Kit