Thinking of buying gears for my 04 GT. RPM Outlet has a kit w/ Motive gears , a diablosport (or sct) tuner, and an install kit. Located here http://rpmoutlet.com/newv8m.htm (option B). Curious if the install kit is adequate, as there are two options, a full, and a standard bearing kit (which comes with the package). Also, are Motive gears a reliable brand? I don't have much experience with rear ends, but I have my bro who's a professional mechanic who's going to help me out. Just curious what your thoughts are. Oh, BTW, I would be going with the 3.73s.