Carli 08-10 Ford F250/350 SD Progressive Add-A-Pack

Carli's six-leaf progressive Add-A-Pack rear springs replace the lower overload leaf with six thinner leafs. It maintains factory load capacity while improving ride quality by effectively mitigating the impact of medium to large bumps.

• Progressive design addresses the harsh rebound of the factory overload spring
• Load capacity is maintained, ride quality is improved
• Includes U-bolts and hardware
• Provides 2.0 inches of lift