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
• Includes U-bolts and hardware
• Provides 2.0 inches of lift
• Load capacity is maintained, ride quality is improved

• Drive: 4WD
• Warranty: Limited Lifetime Warranty

2005-2007 Ford F-250 Super Duty (Drive: 4WD)

• 2005-2007 Ford F-350 Super Duty (Drive: 4WD)