The Carli XXHD progressive spring pack for 2005–2023 Ford F250/350 4x4 (L18XXHD) delivers a 1" lift and added +3,500 lb capacity in a full progressive assembly. Provided as a complete pack for the listed Ford applications, it’s intended for owners needing significant load-support improvements while keeping ride height changes modest and predictable.
Carli 05-23 Ford F250/350 4x4 XXHD +3 500lbs Progressive Spring Pack - L18XXHD - 1in Lift