King OEM performance kit custom tuned to provide your (FORD) with unparalleled levels of performance and ride quality. Each kit has been subjected to punishing real world testing to develop the optimal damping curve and spring rate (if applicable) for your vehicle.

• External Reservoirs Increase Fluid Capacity; Heat Dissipation And Provide Sustained Damping Performance
• Optional Wide Range Compression Adjuster That Gives 20 Precise Clicks Of Compression Damping Adjustment
• Built From The Same Quality Materials And To The Same Precise Tolerances Pure Race Series Shocks
• Dynamometer Lab And Punishing Testing To Develop The Optimal Damping Curves For Your Ford F550
• Large 2.5 in. Shock Bodies Increase Fluid Capacity For Smoother; Cooler Running Shocks
• Specifically Designed And Tuned For Ford F550 Rear Heavy-Duty Applications
• Fully Rebuildable; Serviceable And Tunable
• Factory Tuned For Optimal Ride Quality
• 100 Percent Bolt-On Performance