[2FastSS4U]

Honestly I took the car to my local hobby shop (Hobby Town USA, San Antonio) and had them install the two superdiffs, and CVD's along with shimming them it only cost me about $80 for the labor. It's a steal to me if I don't have to worry about messing them up as they're not that cheap. One thing you might need to take into consideration is that I found that the machining on the MIP diffs had not been done properly and it caused it to bind within the front and rear bulkhead, (they were really difficult to turn and it sounded like sand was in there) anyways, of course the guy at Hobby town hooked me up and filed it down for me and all is well now, just lettin' you know if you happen to come across this problem as well. Other than that slight imperfection everything is great, the diffs are holding up to extreme abuse without any fuss. Good luck with your project, this has been one of the funnest cars that i've bought in a while and pretty dang tough too, its gone repeated head on collisions with another 18t purposely and hasn't broken anything yet :)