05-07 Ford F250/350 4x4 Progressive ADD-A-Pack Carli Suspension Electrical & Ignitions - Ignition Modules - Ignition Performance Module giving you the clearance to

giving you the clearance to confidently run 35-inch tires and the performance to match its bold look

1979-1986 Chevrolet C10 (Rear Axle)

5 inch overall but does increase the turning radius slightly

Hassle-Free Installation: Designed for convenience

05-07 Ford F250/350 4x4 Progressive ADD-A-Pack Carli Suspension Electrical & Ignitions - Ignition Modules - Ignition Performance Module giving you the clearance toCarli's six leaf progressive Add A Pack rear springs replace the lower overload leaf with six thinner leafs. It maintains factory load capacity while improving ride quality by effectively mitigating the impact of medium to large bumps. Features and Benefits: Progressive design addresses the harsh rebound of the factory overload spring Includes U bolts and hardware Provides 2. 0 inches of lift Load capacity is maintained, ride quality is improved