Quick view Fabtech Fabtech 17-21 Ford F250/350 4WD Floating Rear Traction Bar System - FTS62008 Compare $1,345.33 $1,210.99 2017-20 Ford F250/F350 4WD. Reduce rear leaf spring axle wrap caused by tall lift blocks, heavy torque engines and oversized tires with Fabtech's heavy duty Traction Bars. These Traction Bars utilize a shackle design on one end to allow movement with the... Add to Cart Add to Cart