Re: [Chevelle-list] Ring and Pinion Auburn vs. Eaton

[Gene Smith]

Hi,  While on the subject of rear axles, which is better, the Auburn cone style posi or the Eaton clutch style? I am beginning to lean toward the Auburn unit.    I know the 8.2 10 bolt is not the best, but will a beefed version be at least as good as a stock 12 bolt? I am planning on going with all new innards with 3.08's and aftermarket c-clip axles and a girdle type rear cover. I'm still going to have about $1,200 in it. The 3.08 are temporary as I am saving toward a Gear Vendor unit in about two years from now, then I will go with something in the 3:42 - 3:90ish Range.    It also stands to reason that the 8.2 would allow for less parasitic power loss and be quicker and return better gas mileage due to the lighter weight of the internals. But since the ring gear is smaller in diameter, the pinion would have less leverage so theoretically it would probably equal out...or only be marginally better?    Is anyone out there running an 8.5 10 bolt?       Thanks, Gene, ----- Original Message ----- From: Clint Hooper To: The Chevelle Mailing List Sent: Saturday, December 03, 2005 2:16 PM Subject: Re: [Chevelle-list] Ring and Pinion A built 4L80 auto can easily handle well over a 1,000hp. One of those or a Gear Vendors would work fine. Gearing becomes less critical the more hp & tq you have. Your car would work great with a 3.08 cog. Clint Hooper H&H Custom,owner 1969 El Camino ProTourer 2001 H-D FLHR custom bagger http://dalesplace.com/misc/friends/clint/clint_hooper.htm ----- Original Message ----- From: Dan Mascheck The other problem is, running over 700HP. I doubt many overdrive tranys can hold up, to that much abuse!