8 1/4 rear end pros and cons

I'm kind of curious also. I'm hoping to have my 422 together soon, and it will have a man vb 904. The car is a 73 Dart Sport 340 and it still has the original 8.35 rear (I think). I thought about just taking it out and cleaning it up and using it for now, but I'd hate to just tear it to shreds. I probably won't be getting any traction for now, and I know that would help it last a little. I just want to drive the thing, and I'm running out of cash for a rear.