Ridetech 11324499 78-88 GM GBODY REAR LOWER STRONGARMSThese rear lower StrongArms are a direct replacement for the stock trailing arms for 1978-1988 GM “G” Body cars. TheyutilizeR-Joint Technologyandprovide added strength to help get the power to the pavement. 1978-1988 GM “G” Body includesMonte Carlo, Cutlass, El Camino, Grand National, Grand Prix and Regal. R-Joints are a revolutionary rod end design that provides low friction,full range articulation, long service life, lateral stability and quiet operation. Articulates in 3 planes 360 degree axial rotation and 30 degrees of total lateral rotation. Polished stainless ball andRTX10 composite cage provides consistent low friction movement. SpecialRTX10 compositecage needs NO lubrication. Self cleaning design…movement not affected by ANY water, grit, dirt, or debris. Spring loaded closure keeps mechanism tight and rattle free for LIFE! Suspension Location Rear StrongArm Spring Style Air – CoolRide Suspension Type Air Suspension, Coil-Over Suspension, StreetGrip – Stock Upgrade