I have an Auburn Pro and it sometimes makes a loud "grinding" noise when turning slow. It freaked me out when I first head it, so I called Auburn and talked to an engineer who assured me that the noise is not uncommon when using "parts store" gear lube / friction modifier. I've driven about 5000 miles and made 20 or more passes at the track with no other problems. I will just drive it until it shatters. Works great other than the noise.
stock 10 hole rims & a 342