High tensile strength 4340 Chromoly is heat-treated, tempered and induction hardened to produce these heavy-duty axles that are up to 40% stronger than stock 1040 axles. Front axle shaft kits include everything you need to complete the job. Both passenger and drive side inner and outer axle shafts, seals, U-joints and clips. Dana 44 Ford 1968-1979 F-150/1978-1979 Bronco Rh 19 In Chromo 30 Spline By Alloy USA. Dimension - 25 x 7 x 7 in. Item Weight - 11 lbs.