I checked a spare sun shell for the 904. It does spin more true than the one I’ve been messing with.
I might have warped both the 999 and 904.
I have a replacement for the 904.
So I just have to get a 999 low gear shell. Shouldn’t be too bad since it is shares with the 500 or those with the lower gear set. It just has that raised spot in the back
I hope if anyone who is learning reads this. Will see some of the lessons I’m passing along.
Don’t press the bushing out of the sun hear on the back side. Without something under it.
I could see it flex. But by then it was too late.
Did I mess it up? I’m not sure. I just know that the other spare shell I have spins more true and the bushings on it were never pressed out on that one.
Between broken cogs.
Warped shells
And compressed bushings.
The learning curve for pressing bushings. It’s definitely there. These parts when they are together. Perform well. Individually......they are kind of fragile and thin pressed metal or semi brittle cast when a load is put on them in a way that’s off of what they were designed for.
If I had to do it again....and I will. I would take the ring gear support off and press that individually.
And the sun shell. Either support the gear itself or remove it and press the bushings in.
No book is going to tell you stuff like this.
The good news is. I don’t have to press the new bushings out. I’m just gonna replace the shell And use the original sun hear. It’s just a guess that they are warped. Maybe they are and maybe they aren’t. I don’t know.
When they did flex. They came back to original position. However....as fast as this stuff spins. Stuff like that matters. I can see it going up and down some.
The spare shell doesn’t do that. Spins a lot more true
I did however lose
one of the parking pawl return springs in this whole mess.
And two trans pan bolts were missing already
As well as a transmission filter long bolt for the valve body. It only had two.
So I’m trying to source these individual parts
