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| | | | Joined: Oct 2010 Posts: 202 'Bolter | | 'Bolter Joined: Oct 2010 Posts: 202 | I bought this on eBay. It was supposed to be a NOS main shaft for an SM420. It turns out it is NOS but not for an SM420. I'm betting its still a Muncie part. So does anyone recognize it? Photo - SM4?? main shaft Once identified I will relist it for sale. Thanks Walt L. Williams La Verkin, Ut
Last edited by 54Belair; 10/20/2015 3:26 PM.
| | | | | Joined: Jul 2013 Posts: 863 Shop Shark | | Shop Shark Joined: Jul 2013 Posts: 863 | Walt,
You might try Novak.com and they may be able to tell you what that main shaft fits? It sure is not for the SM420.
Tim
"Pay attention to the details! It ALWAYS pays off."
1949 Chevrolet 3100 Series 1/2 ton Pickup
1964 Chevrolet C10 (Ol' Yella) (SOLD)
1958 Chevrolet Biscayne 2 door (SOLD)
1970 VW Beetle
| | | | | Joined: Jul 2014 Posts: 1,291 Moderator for Tons o' Fun , Co-Moderator Driveline Forum | | Moderator for Tons o' Fun , Co-Moderator Driveline Forum Joined: Jul 2014 Posts: 1,291 | 54 Belair - What you have is GM 3688585 , Main Shaft with 22 teeth (11/22/10) for SM420, 1948-1949 before 6-1-49 when they made an improvement and switched to an 11 tooth design ( 11/11/10) and also changed the 1st and reverse gear on the mainshaft. Part number 3688585 superceded to GM 3692608 Main Shaft and that is the correct part number you will need for 1949- 1967 (unless you have a 65-67 1 1/2 or 2 ton truck trans) You can also use Borg-Warner part number WT250-2A. Hope that helps, pm me if you have questions or need help finding the part you need. I may be able to help.
Last edited by Dusty53; 10/20/2015 8:06 PM.
Ron - - Dusty53 1954 Chevy 3604In the Gallery Forum "You can't dance with the Devil and then wonder why you're still in Hell."
"They will forget what you've said, and they will forget what you have done but they will never forget the way you made them feel." | | | | | Joined: Oct 2010 Posts: 202 'Bolter | | 'Bolter Joined: Oct 2010 Posts: 202 | This does help. Thank you
Walt | | |
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