by cjbiagi » Mon Jan 18, 2016 3:47 pm
Most of the 4 cylinders came with a 3.11 first gear. There are some Saginaws with a even lower 3.50 first gear but most likely you have 3.11.
Why do you want to get another trans rather than rebuilding the one you have? Most likely you just need a GOOD rebuild kit with syncros, bearings, gaskets, seals etc. I recently rebuilt my Saginaw and it's not too bad to do, the important thing is to get the correct snap ring pliers (which I did not have). Removing and reinstalling a couple of those is a real bitch without the correct pliers. There is also a excellent 45 minute video on the internet that you can rent for 2 days for a few bucks that is very detailed and worth the cost. The trans gear ratio is identified by looking at the input shaft, there are some grooves or rings on it that identify the ratio. If you need a high quality rebuild kit let me know, I can get one with the good forged syncro's, a heavy duty front "max" bearing and all the parts you need in one kit.
4 speed Saginaws
no lines= 2.84-2.01-1.34-1.00
1 line= 2.54-1.80-1.44-1.00 common
1 Line= 2.54-1.80-1.32-1.00 rare
2 Lines= 3.11-2.20-1.47-1.00
3 Lines= 3.50-2.46-1.65-1.00
Clyde.........75 Monza 2+2