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Mod | | | Forums66 Topics128,049 Posts1,055,665 Members48,426 | | 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!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Apr 2015 Posts: 336 Shop Shark | | Shop Shark Joined: Apr 2015 Posts: 336 | Are all 6 cylinder lower flywheel covers the same? Or do they differ in some manner, such as which cubic inch, year, car or truck it would fit? I've not been able to find any P/N's on them to hint what they fit.
1959 3100 Apache Fleetside
| | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | Not enough information to answer your question exactly, but no. The flywheel underpans and extensions are not the same. The '54 truck part number is different than the earlier trucks and the passenger is different than the trucks. gp 0.679: 37-53 Comm., Utility...............838438 49-54 Pass. (exc. P.G.)...........3688221 54 Comm., UTIL., (exc. A.T.),..3702830
40-54 Comm., Utility (exc. A.T.)....Extension...839180 49-54 Pass., (exc. P.G.) Extension..3688218
Denny Graham Sandwich, IL
Last edited by Denny Graham; 10/05/2015 7:55 AM.
Denny G Sandwich, IL
| | | | | Joined: Nov 2011 Posts: 1,611 'Bolter | | 'Bolter Joined: Nov 2011 Posts: 1,611 | I have found that there are two general styles on trucks.
One style fits 216 and 235 (perhaps 54-55 261?)engines from the first production up to the 54-55 transition year.
The other fits 55-62 235 and 261 engines. The top of the cover has a slight V-shape where the older version is flat. I think a safe generality is this type is used on all engines with the later style water pump. | | | | | Joined: Mar 2010 Posts: 10,272 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,272 | I have one of those deep V ones. I would also like to know what it goes to so I can see that whoever needs one can get it. Carl
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Nov 2011 Posts: 1,611 'Bolter | | 'Bolter Joined: Nov 2011 Posts: 1,611 | I have one of those deep V ones. I would also like to know what it goes to so I can see that whoever needs one can get it. Carl Late 55-62 | | | | | Joined: Mar 2010 Posts: 10,272 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,272 |
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Apr 2015 Posts: 336 Shop Shark | | Shop Shark Joined: Apr 2015 Posts: 336 | I went to a salvage yard looking for a flywheel cover (bottom) for a 1959 3100 with a 235. The owner took me to a building that had several covers that appeared to be for a 6 cyl and I got one and sent it to a fellow Bolter. The issue is, it doesn't fit on the '59's 235, the cross-member restricts it from going in as it has too deep a recess, and the bolt holes don’t line up. How can I tell which is the correct application? Denny Graham has a photo of the one I'm talking about (blue one).Thanks to all for the responses.
Last edited by Cablesmill; 10/08/2015 5:59 AM.
1959 3100 Apache Fleetside
| | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | Those aren't mine, I just posted a link to Cosmo's album, blame him.
dg
Denny G Sandwich, IL
| | | | | Joined: Feb 2008 Posts: 1,122 'Bolter | | 'Bolter Joined: Feb 2008 Posts: 1,122 | I have two of these, one is the set with the deep "v" with the second piece and another one that fits the 216 in my truck but missing the 2nd piece. If wanted, send me a PM with an email address and I'll send measurements and photos. | | |
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