SuperSprings are patented self-adjusting suspension stabilizers engineered forvehicles with leaf spring rear suspension systems. SuperSprings by designprovide users extra load capacity and additional handling and control, bothwithout hardening the ride. SuperSprings install easily and quickly directlyover a vehicle’s existing rear leaf springs. They work in parrallel with thevehicle’s existing suspension system and “kick-in” on demand. This isaccomplished via SuperSprings patented tapered spring blade and rollingshackles. The increases in load carrying capacity helps to eliminate vehiclerear-end sag and improves towing capabilities. SuperSprings unique anti-swayproperties reduce body roll providing enhanced driver safety and control. Thesefeatures are most noticeable when cornering, encountering strong cross winds ordealing with wind buffeting from other traffic. Enjoy a more stable, secure andcontrollable ride with your SuperSprings installed. The SSA22 is a single bladespring with a rating of 2500 lbs. It is highly recommended that you get themounting kit for rough road conditions. SSA22.5: Half set (1) SSA22: Set (2) Boost Load & Towing Capacity Without Compromising The Unloaded Ride Self-Adjusts Automatically To Accommodate Varying Size Loads Or No Load Reduces Vehicle Sway For More Driver Control Maintenance Free Very Easy Installation Cost And Time Savings Versus Rebuilding Spring Pack Call For Application 43″L x 3″W x .56″ Application(s) Summary: Make Model Year Drivetrain Dodge RAM 2500 1994-2002 4 X 2 or 4 X 4 Dodge RAM 3500 1994-2002 4 X 2 or 4 X 4 Ford E-350 Club Wagon 2002-2005 4 X 2 Ford E-350 Econoline 1997-2000 4 X 2 Ford E-350 Econoline Club Wagon 1997-2002 4 X 2 Ford E-350 Super Duty 1999-2025 4 X 2 Ford F-250 1980-1999 4 X 2 Ford F-250 HD 1997-1997 4 X 2 or 4 X 4 Ford F-250 Super Duty 1999-2025 4 X 2 or 4 X 4 Ford F-350 1980-1997 4 X 2 or 4 X 4 Ford F-350 Super Duty 1999-2016 4 X 2 or 4 X 4 Ford F-450 Super Duty 2017-2025 4 X 2 or 4 X 4 Ford F-450 Super Duty 1999-2021 4 X 2 or 4 X 4 Ford F-550 Super Duty 1999-2025 4 X 2 or 4 X 4 Ford F-600 Super Duty 2019-2025 4 X 2 or 4 X 4 th, td { padding-right: 20px; } .product-table-top { display: block; max-width: -moz-fit-content; max-width: fit-content; overflow-x: auto; white-space: nowrap; }