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Click on image for the lowdown. 
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8 members (walter74, moparguy, TUTS 59, Wickedbass, 50Chevy3100, FAST55, Wally / Montana, Mike Burns),
91
guests, and
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robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,065 Posts1,055,870 Members48,428 | | 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: Oct 2009 Posts: 127 'Bolter | | 'Bolter Joined: Oct 2009 Posts: 127 | Thanks - but is there a way to tell a 4:11 from a 3:90 half-ton rear end? Does this casting number "309" and the clock-like marking mean anything? [image] http://i1310.photobucket.com/albums...0f9c816858c_zps9b1e5e6b.jpg?t=1388517486[/image] if not, are there markings on the gears?
Last edited by wurlitzer46; 12/31/2013 9:29 PM.
52 3100 project
54 3100 / 3112 ice cream truck, next project
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