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Click on image for the lowdown. 
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| | | Forums66 Topics128,042 Posts1,055,516 Members48,424 | | 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 2007 Posts: 31 'Bolter | | 'Bolter Joined: Oct 2007 Posts: 31 | How do I tell what I've got under my 51 truck? I am told it was out of a 57 van with auto trans but I want to convert to 3;73 POSI, retaining the 6 lug bolt pattern, so I am wondering where to find the numbers to look up? | | |
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