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Mod | | | Forums66 Topics128,128 Posts1,056,683 Members48,452 | | 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: Nov 2006 Posts: 84 'Bolter | | 'Bolter Joined: Nov 2006 Posts: 84 | Is there any difference between a 1947-54 3/4 ton flywheel on a GMC compared to Chevy? I know the motors are different but did they use the same flywheel? (SM 420 Transmission)
Thanks for the info... | | | | | Joined: Dec 2004 Posts: 1,897 Shop Shark | | Shop Shark Joined: Dec 2004 Posts: 1,897 | Yup! Different flywheel. GMC flywheels won't bolt up to chevy... at least that runs true for the later 6 bolt flywheels that would have been on the 248, 270 and 302s. I am not sure about the earlier 4 bolt 228 flywheel, and if it will interchange with a 216 chevy flywheel. | | | | | Joined: Nov 2002 Posts: 59 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Nov 2002 Posts: 59 | The 1938 & 1939 Chevrolet 216 4-bolt flywheel is the same part as the 4-bolt flywheel used on the GMC 228 from 1939-52 | | |
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