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Click on image for the lowdown. 
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| | | Forums66 Topics128,076 Posts1,055,922 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!
| | THANKS!
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: Feb 2005 Posts: 531 Shop Shark | | Shop Shark Joined: Feb 2005 Posts: 531 | But Wait! There's more! Just found info in the back of my Resto Guide... BUT it states 3.90:1 for a 3100-3200 and 4.11:1 for a RPO 3100-3200...
What's an RPO???? | | |
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