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Click on image for the lowdown. 
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| | | Forums66 Topics128,048 Posts1,055,540 Members48,425 | | 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: Apr 2016 Posts: 52 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2016 Posts: 52 | I have installed a 72 GM 4 speed and a 79 pickup 3.08 rear end in my 54 3100. My speedometer now reads 40 miles per hour when my actual speed is 60. Is it possible to make the original read correctly? | | |
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