Quote:
Originally Posted by Super73
Hoping to go 10.7x-10.8x on motor next time out and get it down to 10.5x in the near future. On the unit, hoping to go 9.9x and work it down to at least a 9.5x. For all I know, the rear could last 10 years or 1 pass. I don't look forward to having to build the 9", but when the 12 bolt goes, the 9" will get built. Maybe before.
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Ck out the rear end 69 GMC 910 had built.