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Click on image for the lowdown. 
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| | | Forums66 Topics128,091 Posts1,056,036 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: Apr 2009 Posts: 431 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 431 | for a '50 3100, 4.11 ring gear - diameter, 10? bolt pattern/ctr to ctr ?
| | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | Can you clarify your question? I'm unsure what you are asking.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more... It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: Apr 2009 Posts: 431 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 431 | hmmm, unless the the data is listed somewhere; if the ring gear was laying on a table, and you measured it's outside diameter, you might find, 8.5", or 9.3", or any other popular gm diameter. and if it has 10 or 12 mounting bolts. and if you measured center to center between two bolts, you might find 1.7" or thereabouts | | |
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