Hey I seen in a Mustang and Fast Fords <--- 
fast fords hahaa...but anyway...I seen in the mag where they "polish" ring and pinion sets in a tumbler with a mixture and it makes them up to 40% stronger because it takes stress risers off and what not. Dunno how true it is and what it would do for us 4wheelers but its something to look into. Do that AND have them cryo'ed and I bet they could handle pretty much anything. I'll check the mag and see if they mentioned a business name. 
Sounds good, because I cant find anything like that on google. And if its not on google, then it doesent exist right?
