Re: stock class rear axle?
REAR END Original rear end may be replaced with another from the same automobile manufacturer; truck rear end prohibited. Aluminum center section permitted only on vehicles that were originally equipped with same. Distance between backing plates may not be changed. Any gear ratio that fits third-member case or housing permitted. Limited-slip or ratchet-type rear ends permitted.
So a COPO comes with a 9" Ford so I guess a 9" Ford is now legal?
Jim Mantle V/SA 6632
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