Bottom line for cost , take your nice 3.07 12 bolt and
Run it , Or put a posi in it and run it. It IS a factory Pontiac 12 bolt. How often you going to look at numbers? You plan on selling, or Diving... you car came with an open rear, can't change that. What you already have is a nice set up, posi or not.
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"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather
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