I did regeared mine not knowing jack about axles, But have done some machining before. It was a VERYYYYYYYYYYYYYYYYYYYYY challenging job that requires some tools you may not have. I spent a chunk o change on just tools. I ruined a couple of bearings, and it took me forever (embarrassed to admit how long it took me) to complete the job. I took my time and it came out really good. If you do it yourself read all the material you can find before hand. If you do not have any patience and don't have something else to drive DON'T DO IT. I am fortunate enough to have some race car guys at work for resources. You can really screw something up and then spend more money than what you have invested already if you don't do it right.