1973-1996 F-150 4" Rear Glide-Ride Leaf Spring (BDS003408)Features Provides 4 inch lift height over stock springs for the rear of 1973 1996 Ford F 150 trucks or Bronco 4WD SUVs Multi leaf progressive spring rate design for a smooth ride under any load Reduces axle wrap, offering a more controlled and stable feel Maintains factory payload weight ratings Exclusive triple stage leaf spring design with functional primary leafs and engaged secondary and overload leafs as load increases Bushings required and sold