Hey all, I'm running 515rwhp right now but with my new buildup Im looking at about 700rwhp+. I need to build up my rear end to make sure I dont bust it into a thousand pieces. Can anyone recommend the parts I need to get to build up the 2008 GT rear end to handle this kind of power? The rear end has 3.73 ford racing gears in it right now and a solid aluminum billet rear end cover but the internals are all stock aside from that including the axles. Thanks once again all!

 

At that power level, I'd grab a built 9".

 

Yea and all the workings. 31 spline axles, beefier chunk, don't want to buy it twice lol.

 

33 splines and spool with the 8.8...welded tubes and torque boxes while your at it