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Click on image for the lowdown. 
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| | | Forums66 Topics128,198 Posts1,057,272 Members48,466 | | Most Online14,466 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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Apr 2016 Posts: 22 'Bolter | | 'Bolter Joined: Apr 2016 Posts: 22 | I've been searching but no luck. It's a 1954 3100 3sp on column. All stock. I have smaller wheels so the speedo is off. I'm trying to find speedo gears (if available) but I can't figure what trans model number. Thanks in advance. | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | | | | | | Joined: Apr 2016 Posts: 22 'Bolter | | 'Bolter Joined: Apr 2016 Posts: 22 | Thank you for the reply and info. Much appreciated. | | | | | Joined: Apr 2016 Posts: 22 'Bolter | | 'Bolter Joined: Apr 2016 Posts: 22 | Is it also called Muncie? I'm looking for speedo gears but only small plastic ones I find. I looked at the trans and after removing the speedo cable it looks like a metal nut in the trans, maybe a 19mm or bigger. I've seen that they sell the all metal ones that look like it but not finding in 22 tooth or a lil bigger. | | | | | Joined: Mar 2004 Posts: 6,236 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,236 | Why don't you calculate the speed difference and install a ratio adaptor in the cable? They are on eBay all the time. Mike B  | | | | | Joined: Jun 2012 Posts: 1 Moderated | | Moderated Joined: Jun 2012 Posts: 1 | If im reading the speedometer chart right, it looks like the driven gear has 20 teeth and the drive gear on the universal joint has 7 teeth. The GM Herritage center is a great resource.
https://www.gmheritagecenter.com/docs/gm-heritage-archive/vehicle-information-kits/Chevrolet-Trucks/1954-Chevrolet-Truck.pdf | | |
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