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Click on image for the lowdown. 
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| | | Forums66 Topics128,167 Posts1,057,020 Members48,458 | | 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: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | Found a 4:11 ratio pumpkin from late 60s that dropped right into my 53 3600, not sure if same holds true for your 42. Late 60s 3/4 tons with automatic trans came with the 4:11s.
Best of luck | | |
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