Ridetech 11326699 78-88 GM GBODY REAR UPPER STRONGARMSRidetech 11326699 78 88 GM GBODY REAR UPPER STRONGARMS These 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,