4 in Rear Leaf Spring Box Kit (17-22 Ford F250/F350 Super Duty)

Improve traction on your 2017-2026 Ford F250 / F350 Super Duty 4WD (with 4.5 inch diameter axle) without limiting wheel travel with a BDS Recoil Traction Bar Mounting Kit, made with heavy wall construction and internal compression springs that can be loaded or unloaded while installed on the vehicle to control axle wrap. Full float design for bind-free performance and can be installed with a range of lift heights.

Fabricated from 2-inch OD x 3/16-inch wall steel tubing with a threaded bung welded in toward the axle and a CNC-machined end at the frame. Axle mount uses BDSfts ultra-durable large-forged flex end and jam nut. Using a forged housing with large 1-1/4-nch x 12 threaded shank, a single sided snap ring and 1-piece flex ball, the flex ends are capable of up to 15 degrees of misalignment in either direction. At the frame end the bar uses a durometer specific polyurethane bushing and free floats in the traction bar utilizing a pair of dual stage internal compression springs and UHMW polyurethane bearings.