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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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#80156 07/18/2007 3:49 AM | Joined: May 2005 Posts: 65 Wrench Fetcher | | Wrench Fetcher Joined: May 2005 Posts: 65 | I think I found a 4 speed saginaw in my growing collection of transmissions. It looks like the picture in Patricks catalog and has 7 bolts holding down the cover. I don't have a bellhousing handy at the moment but it looks like the front bearing retainer flange is wider than the stock 3 speed from my 1950 3100 and I did not notice any grooves on the input shaft. I am not familiar with these transmissions, is there an easy way for me to figure out what this is?
Thanks,
Bbo
1950 Chevrolet 1300
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#80157 07/18/2007 4:23 AM | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | look for a number right side of case, right side of the cover flange some case ID pics here and a bit here, toward bottom - trade it for something  Bill | | |
#80158 07/18/2007 5:02 AM | Joined: May 2005 Posts: 65 Wrench Fetcher | | Wrench Fetcher Joined: May 2005 Posts: 65 | Thanks, it's a Saginaw but after taking another look I realize it is just a 3 speed. For some reason I thought I had a 4 speed. Likely not worth keeping with the 2.85, 1.68, 1.00 gear ratios considering I also have good SM420 and T-5 transmissions.
Bob
1950 Chevrolet 1300
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#80159 07/23/2007 1:53 AM | Joined: Feb 2006 Posts: 395 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 395 | 4 speeds will have 3 shift levers...doc | | |
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