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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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| | | | Joined: Oct 2008 Posts: 88 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2008 Posts: 88 | I have a 62 c-10. My original speedo went kaput. I ordered areplacement and I think they gave me one from a 63. Anywho the new one reads 10m.p.h. slower than the original. Why is this??? Ihave access to another one from a 62 from a guy not far from me, but it is in a big truck and im afraid ill just have the same problem. Any thoughts on this would be helpful.
Darin | | | | | Joined: May 2006 Posts: 679 Shop Shark | | Shop Shark Joined: May 2006 Posts: 679 | Did you ever get anywhere on the calibration that was recommended in November? You might consider this thread. It talks about how to figure out the proper gear and geat change-out. I'm betting you need to swap out gears to get the accuracy you're looking for. Bill | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Match the odometer reading with the mile markers on the freeway. Get the odometer right by changeing the gears in the trans. or with a ratio adapter. Then if the speed does not seem correct the problem is in the head.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Oct 2008 Posts: 88 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2008 Posts: 88 | I'm pretty sure its in the head since the old one was reading correctly. I guess ill just have to live with it. Thanks for the help guys.
Darin | | |
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