If you have to rebuild it do it yourself. I did it and it did not seem as hard as people said. be careful if you change the ratio though, it will kill the mpg if you don't have the overdrive. just a suggestion. It only takes a couple of rented tools and one day. Summit sells a whole kit with the bearings and such.It is a good price too. It has everything, shims, crush sleeve bearings for the housing and axels. just a suggestion. GOOD LUCK!