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Mod | | | Forums66 Topics128,108 Posts1,056,236 Members48,437 | | 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: Sep 2009 Posts: 296 'Bolter | | 'Bolter Joined: Sep 2009 Posts: 296 | Good morning Stovebolters.
I've had a hard time finding 90 weight mineral oil here locally, and wondered if 80W-90 is ok to run in my SM-420 4-speed. The closest thing I've found that would probably work is at Tractor Supply; 90 weight mineral "Traveler" brand Ford tractor transmission oil. This would probably work just fine wouldn't it?
-Patrick
1953 Chevrolet 3100
261 / 4-speed / 4:11 / Commercial Red
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