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Old 04-04-2020, 01:03 PM   #4
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Join Date: May 2010
Location: Garlic Country of CA
Posts: 439
Default Re: Wanted: Ford transmission expert

Larry, I've looked at both the 01C-7100 ans 21C-7100 low gears and see no difference except the 21C sometimes has a small groove in the outer diameter of the flange. I have not compared both of the cluster gears.
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