1999-2010 2500HD 4 INCH LIFT REAR SPRING

Deaver Progressive Series springs utilize high-grade 5160 "American Made" steel in 9-leaf and 10-leaf configurations. The increased leaf count allows for thinner material, creating a more flexible, progressive stack with a smoother spring rate curve throughout the suspension cycle. This even, linear compression rate is key to excellent ride quality. Additional features include military-wrapped spring eyes for durability, diamond-cut inner leaf ends to minimize shear points, and anti-friction pads for a smoother, quiet operation. When paired with properly valved shock absorbers, ride quality is significantly enhanced.