The 3" system is designed to level out a Super Duty front to rear and to provide room for 305/70R16 tires. This system drops your stock springs 3", which allows for 3" of lift while maintaining...

This system is designed to lift an Excursion 3" and provide room for clearance of 305/75R16 tires. This system drops your stock springs 3" while maintaining the stock spring rate. With the stock...

Our 4" system provides great off-road performance, using the same technology that we use on our off-road race trucks, and allows clearance for 35x12.5R16 tires. We start with 100% American-made...

This system is designed to lift a Super Duty by 4.5" and to provide room for clearance of 35x12.5R16 tires. In addition to spring hangers that drop your stock springs by 4.5", we have included...

This system is designed to lift an Excursion by 4.5" and to provide room for clearance of 35x12.5R16 tires. In addition to spring hangers that drop your stock springs by 4.5", we have included...

After months of testing our 4.5” system,President and Owner of Donahoe Racing, Kreg Donahoe, stepped out of the test truck and said “I want this exact spring rate and shock dampening on our new...

Want more? Now you can have an additional 2.5” of lift.Our new 7” Upgrade System was designed for those who currently have a Donahoe Racing 4.5” 2005 Super Duty Suspension System and want to go...

This system modifies the torsion bar and shock motion ratios for better control over spring rate and dampening for unsurpassed ride quality and performance. This revolutionary tri-arm system...

Our 5" system provides great off-road performance, using the same technology that we use on our off-road race trucks, and allows clearance for 35x12.5R16 tires. We start with 100% American-made...

Our 6" system is considered the best on the market and uses the same spring technology we have applied to our off-road race trucks. With twelve thin leafs made of the highest quality American...