So finally got my car together and my local track open in 2 weeks. Can you build a 10 bolt fairly inexpensive? (cheaper then a 12 bolt or 9"). Theres 4.56 in there now. I am running slicks but not launching off the converter. Just want to launch hard and not worry about breaking the rear.

 

If you have the 90-up 28-spline axles, or the best aftermarket 26-spline axles, then the R&P is the weak link. The only help is one of those aluminum rear covers with the bolts that pre-load the carrier caps. And run good synthetic lube. The next weakest link is the differential cross-pin. There is an aftermarket upgrade, it takes a little light grinding of the teeth on the ring gear to use it. Don't grind the pin.