Style chooser

after all the hard work, R&D, money,sweat, and blood on the car, we finally manage to build 1 drag machine but we totally for got the axle! the ring and pinion broke into pieces!!!............. the housing is still good and the driveshaft is usable.

my question is where can we do the custom ring and pinion? location is no problem but preferably contactable and reputable.

2nd question, is there any model car we could replace the ring and pinion but it has to be stronger unit and able to...