Super Duty F250/F350 2008-2016 2wd/4wd – 7 Inch Lift Rear Springs (Pair)

Deaver 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.