zerothread?id=288419Check that thread.And do some searching, this subject has been tackled several times. Tired of people who dont know what they are talking about. Then figure it out on your own. If you dont have 135 bucks for new axles then you shouldnt be modding this car. You are gonna need new ones eventually if you are going to be burning out and beating on it. Dont be an idiot, just buy the axles, put the diff in and feel good about it. No need to make yet another Diff thread. And as far as I know, you cant put the Z32 TT diff in the s13 housing, too big. Just buy the axles, they are stronger anyway, and install your diff and quit trying to reinvent the wheel. One of the reasons for upgrading to the Z32 diff is for the added strength. Dont buy the stronger diff and mate it to the weaker axles.