Carli Suspension 4.5" Full Replacement Progressive Leaf Spring Pack 05-07 Ford F-250 / F-350 SuperDuty 4x4 BAJA-551015WT So your stock lift pump

So your stock lift pump is starting to die

there are no short cuts that minimize quality

Winch Weight: 81

then at the bottom

Plug it in

Carli Suspension 4.5" Full Replacement Progressive Leaf Spring Pack 05-07 Ford F-250 / F-350 SuperDuty 4x4 BAJA-551015WT So your stock lift pumpYou want the ultimate ride, both on and off road for your SuperDuty? Look no further than Carli's FULL Progressive Rear Spring Pack. This leaf pack will support up to a whopping 15" of wheel travel! The center pin is relocated so you can run 38 inch tires and it can be used in addition to blocks for an even taller ride height. The spring pack delivers smoother suspension cycling in all situations, highway, off road and towing. The Carli Suspension