37 tranny replacement

[petehoovie]

Originally Posted by 40coe

Yes, 39 transmission is way to go. As previously stated, you will need a 39 clutch lever. Since you have the transmission out now is the time to go through it. Bearings, synchro's, thrust pad, etc. Also I recommend cutting "O" ring groves in the case and using a modern oil like Redline MT 90. You will have a supper smooth shifting transmission that will not leak.

[topfuel724]

If you are using a 39 transmission in a 37 model car the clutch arm will have to be changed to a 37 model also. In early Fords the clutch arm must be the same year as the model year of the chassis.

[Mac VP]

Unless, of course, if the vehicle now has a 39 pedal assembly cuz he went to hydraulic brakes. Stick with the 35-38 arm if it’s still running the mechanic brakes. The pedal assembly will determine the clutch arm.