I have an 03 SWB Rubicon with all the standard (OEM) drive train goodies. Since Iâ€™m running 34â€ tires I feel that Iâ€™m about at the limit of what my axles can handle and if I ever wanted to move up to say 37â€™s what would I need to upgrade them to? Is a chromoly axle shaft with a stock spline going to be strong enough? Should I look at increasing my spline count and ditch the stock lockers and go with an ARB? Am I going to blow up my stock lockers? What else would be the weak points in my drive train?