| |
Click on image for the lowdown. 
====
| | |
2 members (Otto Skorzeny, 1 invisible),
97
guests, and
7
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,181 Posts1,057,189 Members48,465 | | 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!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | 
#20084 12/17/2004 3:16 AM | Joined: Oct 2004 Posts: 1 Junior Member | | Junior Member Joined: Oct 2004 Posts: 1 | Can anyone tell me what kind of transmission I have? The numbers on the tran. are GM 30 3743368 k 170 There are 10 splines on the front and 16 splines on the tail. The shifter housing has the number 3741357. The transmission came out of a 56 chevy 3200  | | |
#20085 12/21/2004 11:41 PM | Joined: Mar 2004 Posts: 83 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 83 | If it is the stock trans out of a 56, it will be a SM-420 4spd with the 7.1 to 1 1st gear. This trans was used from 47 to 67 in the 1/2t to 2 1/2 ton model trucks. Hope this helps, Garry
Garry K in Pac Nor West
1948 Chevy PU 235 SM420 4 spd
1932 **** B pu
1964 Datsun 4x4 with SBC, SM465 4spd and Rockwell xfer Dana 44Fr and 12 Bolt Rr.
| | |
#20086 12/22/2004 2:40 AM | Joined: Dec 2004 Posts: 452 Member | | Member Joined: Dec 2004 Posts: 452 | A general web search for the casting number 3743368 resulted in the following: http://1967-81camarocarparts.com/catalogPDFs/F2%2002%20transmission.pdf That case casting number is for a 58-63 Saginaw 3-speed. Given the casting date K170, assuming that is a casting date, yours was cast in 1960.
Curt
----
1953 Chevy 6400, 1957 Chevy 2dr Sedan
--"Mediocrity is easy, the good things take time"
| | |
#20087 12/22/2004 3:53 AM | Joined: Oct 2003 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2003 Posts: 66 | The amazin' one sez that you have a broken transmission, and it is now OUT of your truck. :-)
Seriously, I don't have a clue! | | |
#20088 08/30/2005 12:36 AM | Joined: Oct 2004 Posts: 40 Apprentice | | Apprentice Joined: Oct 2004 Posts: 40 | I see that you know I asked this question before. After I asked last time I started looking and couldn't find one that looked like mine. They had you look at the bolt pattern on the side and all had too many bolts. That is why I asked again. I am pretty sure mine is a saginaw 3-speed now. Thanks for all the help. | | |
|
|
| |
