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Mod | | | Forums66 Topics128,073 Posts1,055,908 Members48,429 | | 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!
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| | | | Joined: Aug 2000 Posts: 1,438 'Bolter | | 'Bolter Joined: Aug 2000 Posts: 1,438 | I came across a '41-46 GMC speedometer to use in my '40 Chev. However, the cable connection is much larger. This is about 7/8" diameter, my Chevy is much smaller, more like 5/8. Is the larger size normal for the GMC pickups? The one I got is supposedly for the big CCKW trucks. Might it be specific to those?
I'm guessing I can have a cable made up but I need to better identify what the connection at the speedometer is.
Dennis
40 Chevy 1/2 ton
| | | | | Joined: Nov 2011 Posts: 1,611 'Bolter | | 'Bolter Joined: Nov 2011 Posts: 1,611 | HI Dennis,
The GMC speedometer head connector is larger than the Chevy. Perhaps you could change to a GMC speedometer cable? Not sure about the transmission side.
Odd how some GM family parts fit while others don't...
Paul
Last edited by Paul_WNC; 12/08/2017 11:03 PM.
| | | | | Joined: Aug 2000 Posts: 1,438 'Bolter | | 'Bolter Joined: Aug 2000 Posts: 1,438 | That's a good idea Paul. I'll order one up and see. Thanks.
Dennis
40 Chevy 1/2 ton
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