Inspection of a 904 torqueflite

Is the sprag clutch and reverse drum different between the 904 and the 999?
It also looks like the output shaft support on the 999 is a little stronger....more structure supports on it

From what I see. This reverse drum looks like it was made that way. I’m curious as to if they are different or if that’s wear.

I’m guessing even though the reverse drum is worn a bit. I can just tighten up the band a little more and it should be fine? I’m going to reuse it.....but still yet.....

Why.....is the trans fluid black as it is? I see literally no wear on anything but the thrust washers and barely.....snap ring like normal wear. Nothing I see could have caused this much metal. Even the output shaft support.....all of it collectively maybe. All that is left is the torque converter.

I’ve learned enough about the hard parts of this to start looking at parts and putting it back together.

I’m not going to replace the clutch piston seals....I’ll check the clearances but I’m guessing they are fine. I’m not replacing any bushings.....except maybe the front but it looks ok. All I can see that this needs is some gaskets and adjustment. I will replace the thrust washers. And put a tf2 in it.

Also.....I see this one wire device coming out of the transmission. I’m guessing it runs the torque converter clutch. Will I just have to wire 12+ to a toggle switch and switch the torque converter clutch manually or is there something I can buy to run that automatically. I pulled as much of the wiring as I could. It went I t the vans interior at the firewall somewhere. I’m guessing some computer. The van was carburetor with a 2 barrel so there was no fuel injection.

Maybe a lean burn system at best but I saw nothing implicating that. I should have followed the wire to the end but it was stupid how and that trans took 3 hours to get out without a hydraulic jack

Also....the gear train end play was .025
Still in the middle of spec.

I can find nothing wrong with this transmission......