Pro Comp 22415 Rear 4" Lifted Leaf Spring for 1999-2007 Ford F250 / F350 4WD BY BOLD AUTO PARTS STORE Specifications Manufacturer's Part Number: 22415. Spring Position: Rear. Leaf Spring Width (in): 3.000 in. Progressive Rate Spring: Yes. Spring Rate (lbs/in): 375 lbs./in. Lift Height: 4" for F250 / F350 and 6" for Excursion. UPC: 614901224153. Sold: individually. Fits .
They fit very well. I removed 4 inch blocks and replaced with 4 inch lift springs because my stock leaf springs were broken. Installed with energy suspension poly bushings. Was concerned about hauling capacity, but after hauling several loads of concrete block, there is no issue with load capacity. Truck rides MUCH better than before, and pulls or hauls every bit as much as stock