Inspection of a 904 torqueflite

Are you thinking that converter is bad. I can’t see anything else that’s worn down that much.

The planets are not perfect but the ring gear Is and we inspected the planets.

That output shaft is dug out pretty good. The bands have some flaking.....
Selective washer is ground down and the thrust washers have material removed.
One of the frictions has wear.

Could all that wear combined and no fluid change cause that to be black

And.......compared to the 904..

That reverse drum is about .050 lower in thickness on the 999.
So either that reverse drum was changed in design. Or it went through hell. It shows no signs of hot spots. I can’t find pictures that showed a difference well enough and I can’t find size specs on them....I brought it up a lot and figured if you guys didn’t think it was off then maybe it was just made smaller than the 904

That’s all I can think of besides the converter that I can’t see

And why did they go from cast iron sealing rings on the accumulator to a soft sealing ring.
Which one is better?
The 904 is the cast iron and the 999 is maybe a Teflon style ring. The 999 doesn’t compress as well. The new accumulator has double info in the softer style so maybe it’s better.