These concours reproduction under-ride traction bars for 67-70 Mustangs are exact reproductions of the traction bars that were originally available in the 60's to eliminate axle wrap and wheel hop. They feature authentic details to perfectly match the appearance of the originals. The heavy-wall tubular bars have cast ends with correct "M-1" markings. The original bars were made from thin wall tubing and are prone to bending. Scott Drake traction bars are made to handle more power with super strong .187 wall tubing that is twice the thickness of the competition. Axle and frame brackets are fabricated from extra thick steel plate for maximum strength. Each kit is finished in a durable semi-gloss black powder coating for a lasting show quality appearance. Rubber bushings, alignment spacers and zinc plated grade 8 hardware are included. Like all Scott Drake products, these are backed by the Scott Drake 100% satisfaction guarantee. Note: will only fit original 1967-1970 Ford 8" and 9" rear ends. Many later 9" rear ends have larger axle tubes that have been retrofitted into these cars. Welding required for frame bracket installation.