1947 – 1954 Chevrolet & GMC 3100/3200 Economy Mustang II IFS Kit. Enjoy the comfort and benefits of having an independent suspension system in your early truck without paying the big prices of other kits. These kits come with crossmember, coil springs, spindles, brakes, shocks, upper and lower control arms, rack & pinion, sway bar, plus mounting hardware. Specify manual or power steering and stock or dropped spindles. Rotors are available in 5×4.5, 5×4.75, 5×5 and 6×5.5. Power Rack upgrade available for $100.00