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Mod | | | Forums66 Topics128,079 Posts1,056,058 Members48,433 | | 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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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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Also keep in mind that some speedometer shops can make an adapter based upon the difference between your truck's speedometer reading and that of a speedometer ap off of your phone. When I swapped my gears from 4.11 to 3.55, I told the shop what the speedo read at the same what my phone's speedometer ap (Speedbox) read. They produced an adapter which reflected the difference. Dead on! If the original poster is not interested in buying the ratio adapter from Jim Carter, here is a different company that sells a mechanical ratio adapter and an electronic (ERA) adapter. | | |
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