Re geared my wagon yesterday and installed and ARB front and aussie rear locker. Set the gears up with Nitro 4.56 gears instead of factory 3.7's. Backlash set yo .007" and pattern looked really good. Aussie went in flawlessly with all the right clearances. Filled it with fluid and drove off. Sounded good and felt good. Did a hard start on wet pavement and bang..... Still waiting to get the truck home but we pulled the axle out the side last night and it has a great torsion failue near the splines. Could I have messed something up? Or is it just the added torque? 35" SSR with a turbo'd 2H. Never had breakage issues before..... Arre poly's worth the $$. doesn't seem like this is a common problem. Any one have a long side rear axle shaft?