Coil-Rite(R); Air Helper Spring Kit Coil-Rite(R); Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; Install Time 1 hr.; No Drilling Required; DODGE DURANGO CITADEL CREW R/T SPECIAL SERVICE SXT 2012 3.6L ERB (220) Pentastar 5.7L Hemi EZH (345) FLEX GAS Firestone Ride-Rite Firestone Ride-Rite Coil-Rite Air Helper Spring Kit - 4191 4191 Suspension Load Leveling Kit