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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#11450 01/19/2004 5:53 PM | Joined: Mar 2001 Posts: 20 Junior Member | | Junior Member Joined: Mar 2001 Posts: 20 | I have the original sm420 in my 52 chevy pick up and need to know the number of teeth on the speedometer drive gear. I know the number of teeth on the driven gear. I want to avoid opening up the transmission, so if anyone can help me I would appreciate it. I want to get a ratio adaptor and need to know the number of drive/driven teeth.
Thanks, Bill | | |
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