Inspection of a 904 torqueflite

I’m thinking about it. I’ve already trashed two of them in the 999. Reaction shaft
The 904 reaction shaft was done at the same time with no issues.

This time I ordered 3 replacements for the reaction shaft. I will try one more time.
Then let a trans shop try and see if they can get it. If they can’t and they see why. I’ll have a third one ready to go.

I was able to get the ring gear support replaced with a new bushing and I think I have a sun shell on the way for the 999.

After all this. I should have all the parts and knowledge to finish both units.

On the sun gears for the 904 and 999..... The bushings in them are both new and rotating like they should....I had to repress the 999 again with another set but the second time they were fine. I did not put pressure on the shell this time. The bushings were pressed with the sun gears removed.

All that’s left is the 999 reaction shaft to finish the bushings.

I’m not sure why that one is compressing the middle. Maybe there is a high spot in the housing that is causing resistance on the way in and making it harder for the bushing to go in smoothly. So it compresses it on the way in. At this point I’m pretty good at getting these pressed in with a press and a hammer manually.
Maybe some dawn dish soap will help......

It’s difficult or impossible to measure that far down the hole to find high spots so I’ll have to look at it more carefully. I wonder if the bushings were originally pressed in and then machined in place. I know it’s common with the seam style bushings at the factory to do that. The original could have had a high spot and just been machined out.