Inspection of a 904 torqueflite

After some time and trial. I was able to get the rings to compress. Once they did it was easier to get the output shaft in and out as needed. They are the interlocking set. It just took some more wiggling to get them to compress

Once the output shaft was in. I kept adding the pieces. I had replaced all the bushings with my press and a bushing driver set. They went in smooth.

When trying to put on the sun shell with gears. It wouldn’t lock into place all the way. It was 1/16” off.... I couldn’t figure out why. There was no reason for it not to.
I found out one of the bushings was tight. It wouldn’t let the shell slide into place. I took it all apart and put the sun gears on the output shaft by itself. Just to make sure there wasn’t any other binding.
There are two bushings in the shell. I filed them and finally was able to get it to seat. Ruinin*the bushings in the process.

Is this common where you press bushings in and they have a sort of high spot and won’t work?

So then.....I decided to check the others. I found the reaction shaft had the same issue. It was tight and wouldn’t let the pump set down into the input shaft.

So.....I’m building two transmissions. 999 and 904. Same transmission basically. The 904......no issues. Those bushings are the same and were pressed at the same time. Same part number even.
The 999 has some of the bushings tight. What causes this? They were pressed in gently and went in fine. Now. I have to order another set. Replacing all the bushings has been a learning experience and not always gone smoothly.
It sometimes happens, usually at the ends of the bushing, usually they need a scrape to cut down the burrs or raised edges.
Again watch your terminology. There are no bushings in the suns hell. There are bushings in the sun gear. The rings you were talking about are on the parking gear.