Gabriel 61680 ProGuard Shock for select Ford F-250/F-350 Super Duty models Engineered for comfort and control in trucks, vans and SUVs, chromed rod Engineered for comfort and control in todays trucks, vans and SUVs Piston seal reduces oil by-pass for maximum shock control and performance Larger reservoir tube provides better cooling for longer life Low friction oil seal for greater comfort and longer shock life