I have a friend here in Fresno that does differentials. He is doing my Elocker, He worked for a shop that did nothing but rear end work and diff setup so he is good at what he does, I was talking to him about diffs and mentioned that there seems to always be alot of people looking to get diff work done, he said he will do them for 175.00 so if anyone wants i can give you his info. He can get parts or you can supply. I told him to check out gear installs. I know zuk isnt doing them for now so just thought i would throw this out there as another option.