Forgive me if this is way off base, but you said there is a different # of teeth on the gears from your original mark, and HRL said one gear turns at half the revolutions as the other. Is it possible that the teeth difference on one is twice the other. It seems that should be the case. Good luck.
Jeff
"Do not walk behind me, for I may not lead. Do not walk ahead of me, for I may not follow. Do not walk beside me either. Just leave me alone, you're starting to freak me out."
1957 GMC 150
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