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Old 07-11-2016, 06:49 PM
TedRamAirII TedRamAirII is offline
Ultimate Warrior
 
Join Date: May 2014
Location: Ocala, Florida
Posts: 2,778
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Quote:
Originally Posted by 1969GTO View Post
I have owned my Auburn posi 12 years now, I have had 3.55 and 3.90 gears with it.
Some strip time, mostly street.
I use 80/90wt oil and 2 bottles of the GM additive.
I have never had a problem of any kind.
The car is a 69GTO with 8.2 BOP rear.
You wont have a problem until one day, its not going to work like it used too. When that happens, its worth its weight in scrap.

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1968 Firebird 400 RAII M21, 3.31 12 bolt, Mayfair Maize.
1977 Trans Am W72 400, TH350, 3.23 T Top

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