You won't find one anywhere that uses all that I sent you.
Bow Tie's most expensive doesn't use 5 pinion planetaries unless you pay extra. They don't use the reaction carrier shaft w/torrington either.
Raptor uses 5 pinion but only aftermarket and you won't get the beefed up pump with the hardened stator. But you can get the reaction carrier shaft.
My contact at GM was really nice. He was the one that let me in on the new process reaction carrier shaft. GM was using some new process on them to prevent the splines from shearing off as well as using the torrington. The material they were made out of changed. You could see a difference in the texture of the surface between the new ones and the "old" 4L65E carrier shafts.
That was a BRAND NEW shaft, only other things you would find it in was Hummers and Cadillac Escalades.
In case you don't realize it, your valvebody is most likely fucked.
This makes perfect sense why all your TCs were coming up damaged. My bet is that they are using the bellhousing bolts to pull the transmission up to the engine. It ruins the pump which will damage the TC.
That sprag with integral sun gear has only been out a few months for repair/replacement for dealerships.
I'll be real surprised if you even get your trans back. My bet is that they will get one at a junk yard, throw it in and send you on your way.
At least we know who they are now.
Hindsite 20/20 I should've just had you shipped your trans to me.
Shops usually do NOT disassemble it down to the level yours had to be to upgrade it. This leaves them in a position they can't put it back together correctly. Many shops are clutch swappers. They don't even disassemble the pump. They should've seen some of those parts before if they had done ANY 4L60E's. I've got another hunch that says they put in the bronze thrust washer AND the torrington bearing and fucked up your sun shell. That's why they took it out.
I don't want to see anyone else go through this. I'll only do the basics in the GP. 5 pinion planetaries, new sprag, clutches, gaskets. Pump for the TD guys. What a disaster.
If it were my truck, I wouldn't leave it there. Eventually it is gonna get damaged externally. Or they are gonna start losing your parts(support brace that goes from the Transfer case to the bellhousing,etc).
Sorry I got short with you. It's not your fault. You trusted them like anyone else would have.
I don't know what to say. I'm glad I didn't talk to them. I'd have ended up hurting more than helping by they way this sounds. Not only could they not do the upgrade, they can't even just reassemble it.
Is there any way you can get them to pay you for the parts they damaged? Saying, "you don't need it" doesn't give them the right to damage parts. BBB can't do anything?
George