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Mod | | | Forums66 Topics128,183 Posts1,057,264 Members48,467 | | 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: Dec 2015 Posts: 2,063 Big Bolt Forum Moderator | | Big Bolt Forum Moderator Joined: Dec 2015 Posts: 2,063 | 47 was the first year for the SM420. Here is a link to the info on that tranny. http://www.novak-adapt.com/knowledge/transmissions/manual/sm420Congrats on the new truck! I'm trying to get another as well, if the guy will ever call me back! | | |
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