I just bought a ring and pinion from Allstar Performance off of Summit Racing. I was wondering if anyone has delt with these before and are they reliable and worth paying for? It's not for racing application only street use. It's going on a GM 8.5 10 bolt rear end Posi Trac. It's going to be in my Olds with a SBC making around 370 horsepower. I've just never heard of Allstar Performance and don't know if they're any good. Let me know fellow G-Body owners.