Deaver's Progressive Series springs are high quality 9-leaf and 10-leaf units fabricated with high grade 5160 "AMERICAN MADE" steel. A higher leaf count spring allows the use of thinner leaf material that yields a more flexible progressive leaf stack, or pyramid, producing a much smoother spring rate curve throughout the complete suspension cycle. The even, linear compression rate curve of our Progressive System spring is the primary key to excellent ride quality.
Other design features include diamond cut inner leaf ends minimizing shear points, anti-friction pads inserted between the leafs for a smoother ride and quiet operation, full military-wrapped spring eyes for superior durability, and OEM bushings.
Combined with properly valved high performance shock absorbers, the ride is enhanced beyond belief.
Deaver Spring produces a wide variety of FORD after market leaf springs specifically engineered to improve suspension performance of your Super Duty. With multiple leafs made of highest quality 5160 grade American made steel, Deaver springs are the softest, most durable springs available for the aggressive off-road enthusiasts and the everyday driver. Offering superior comfort and ride characteristics, Deaver springs are unparalleled in performance and durability.
100% US Grade 5160 Steel
10 and 11 Leaf packs utilizing very thin leaves allowing more movement
Riveted Bolt style spring clips (provide more droop)
Diamond point inter-leaf end with polypropylene pad inserts
