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Mod | | | Forums66 Topics128,080 Posts1,055,953 Members48,430 | | 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
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: May 2010 Posts: 5 New Guy | | New Guy Joined: May 2010 Posts: 5 | I have a 71 C-50 with a vaccumm operated 2 speed rearend. How does the speedo know what rearend gear the truck is in? Thanks.......................Flat67 | | |
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