Well according to some Ford manual I found the mtx75 likes .013 preload
I am running .007 and I think I hear some gear noise in 1st when turning. but it could be tire rub.
I think we're gonna do .009-.012 on yours. [thumb]
btw, nobody knows this stuff, and if anybody does, they keep it secret for whatever reason (probably to make more money off of people who send them tranny's to do...)