The Lippert Heavy-Duty Shock Kit will help give you a more comfortable travel experience by managing your axle spring movement. This bolt-on, heavy-duty axle shock kit lets enjoy a smoother ride and reduces tire wear. Includes two heavy-duty suspension shocks with all mounting hardware.• For 2-3/8" diameter axle tubes• Absorbs road shock to provide a more comfortable towing experience• Comes with everything needed to attach gas shocks to existing RV or trailer suspension Gives you a smoother ride & reduces tire wear Includes two heavy-duty suspension shocks with all mounting hardware For 2-3/8"" diameter axle tubes | Lippert Heavy-Duty Shock Mount Kit, 2-3/8"