2005-2026 Powerstroke Progressive Rate Coil Springs w/ 4.5" Lift (CS-FMRC-05)

Fits

Unlike Linear Rate Coil Springs, these Progressive Rate Springs are ideal for someone who hauls/ tows frequently, as they have better handling under load, and are not ideal for performance applications. They provide a slightly softer, more compliant ride at low compression, and become firmer as more force is applied. This helps to dampen small bumps and vibrations; this variable spring rate prevents fatigue and sagging, effectively extending their lifespan.

Part Number: CS-FMRC-05

• These 4.5"/5.5" lift springs are side-specific and multi-rate to provide ride comfort and a secondary increased spring rate to prevent the suspension from hitting the bump stops in their massive travel range
• Each coil spring is shot peened and pre-set to ensure maximum strength and durability, even in the most demanding off-road conditions
• Finished in Durable Black Powdercoat