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Carli's progressive-rate Add-A-Pack rear springs for 2011–2016 Ford F-250/F-350 4x4 replace the lower overload leaf with a six-leaf mini pack to smooth harsh rebound without changing factory load capacity. The redesign improves spring progression for more predictable engagement, mitigates medium-to-large bump impacts, and includes U-bolts and hardware while providing approximately 2.0 inches of rear lift.
Carli Add-A-Pack Rear Leaf Springs - 2011-16 Ford F250/F350 4×4 - 2in Lift
