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Discussion Starter · #1 ·
Hello all,
I have searched the forum and can't seem to find an answer. I have a 12 bolt in a car I purchased. It has a spool and a gear set with the following sets of numbers:
Richmond
80-0629-1
05 8620

I can't seem to find what series or ratio this is.

Thanks in advance for your help!
Jeff
 

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Count the ring gear and pinion gear teeth. Divide the number of ring gear teeth by the number of pinion gear teeth and the result is the ratio.
 
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