The Currie F9 rearend is the ultimate upgrade for the Raptor/F-150 owner who wants to have fun with his truck and not worry about bending or breaking the factory rearend! Built to take abuse this crate rearend features a fully fabricated Currie F9 housing with monster 4-inch tubes, floater spindles, and 35-spline full-floating axles, all built from super tough chromoly. If you play hard in your Raptor, this is rearend for you - for added strength don't forget to go for the optional back brace