Fits all 2015-2017 Mustang - GT, V6, I4 and GT350. Fits in place of production half shafts with no other vehicle modifications Severe duty serviceable CV joints with CNC billet centers CNC-machined from aerospace high-alloy materials Billet one-piece 34-spline inner and 32-spline outer stub ends Axle shafts feature anti-wheel hop technology Built by G-Force engineering, available only through Ford Racing Off-road use only Manufactures limited lifetime warranty on axle bars and stubs, 2 year warranty on wear components.