Request some help

My friend doesn't do transmission rebuilds, and he runs his business out of his garage. I have 3 friends that own shops non of them do transmissions. Aamoc was the cheap choice. Limited income of 70% of salary due to workers comp, obviously wasn't that I couldn't afford a rebuild, after it blew up I had it rebuilt without delay.....

Aamco did pull the pan while they had it at the shop, the fluid was dark, and had small particulate in the pan, I had them flush the transmission and replace the filter.

My guess is they helped the transmission fail faster and that I am screwed out of the cost for my rebuild.

You may have something there in one area.
If the fluid was dark it shouldn't have been flushed and new fluid added.
It should have been disassembled to find out what made the fluid dark.
(Exessive clutch material in the fluid and/or heat from slipping friction material makes fluid dark)
They probably should have recommended against the flush and fluid change.
New fluid will disolve old friction material due to the fresh detergents.

At best, it was dying and the new fluid hastened it's death.

They will still argue that it was a 40 year old transmission though.