My mechanic has a brand new H2 rear axle that's been sitting in his shop for awhile. He said he'd give it to me for free...just pay for install if I wanted. Only reason why I'd want it is for the rear locker since I off road alot. My concern is that I might have some issues if I do the swap. My T is still pretty new. Rear diff hasn't had any issues so far. Should I do it?