Carli Suspension | 2005-2007 Ford Super Duty Progressive Leaf Spring Add-A-Pack

SKU: CS-FPAP-05– Built in the U.S.A. By Deaver Leaf Spring– Smooth progressive design– Supplied with U-bolts and hardware– Provides 2.0″ of lift– O.E.M. load capacity maintained, improved ride– Fitment: 2005-2007 F250/350 4×4, 3.5″ Axle Tube Our Add-a-Pack rear springs are a proprietary design built for us by Deaver Spring MFG. The lower overload leaf is removed and is replaced with thinner gauge leaves. The O.E.M. load capacity is maintained while improved ride is achieved. If Pairing to 4.5″ System: Super Duties equipped with a 2″ tall block from the factory will require the factory 3-5/8″ tall Block to achieve a leveled stance to a 4.5″ kit with the Add-a-Pack.Factory Block Part Number: 7C3Z-5598-HB, 7C3Z-5598-JB If Pairing to 2.5″ System: Super Duties equipped with a 3-5/8″ tall block from the factory will require the factory 2″ tall Block to achieve a leveled stance to a 2.5″ kit with the Add-a-Pack.Factory Block Part Number: 7C3Z-5598-L and 7C3Z-5598-K These packs are designed to