not a clue

The clutch packs fail. Same thing happened to my 07 Avalanche.

Input shaft.

Could you hear any movment in the trans? Or a failed connection between teh flex plate and the torque converter/

nope. no noise just wouldn't engage

I gave it some thought. To have no drive to the wheels can come from a few places. Failed flex plate, that would make noise. Loss of the 3 bolts holding the flex plate to the torque converter. No noise, no drive, nothing. Failed torque converter, you should still have some power transfer. Failed transfer chain, you have two of them, and there should have been some noise. don't see this happening unless you were really beating on it. Snapped input shaft. Possible, but not something I would expect unless you were beating on it. I don't see anything else causing a total loss of drive in all gears. I would remove the inspection cover and check the flex plate. If the input shaft failed, the torque converter is likely gone.

no clue what it is. she has been slipping on the 1-2 shift and sometimes on the 2-3. slipping meaning it would take off fine the try to shift from 1-2 and 2 wouldn't be there it would neutral out, same thing with the 2-3 until you let off the throttle a lil bit. then it would catch 2

Sorry to hear that Steve. Why is it at the shop and not your place?

i don't have the tools to fix it here. all i have here is my pit pack that i use for normal maint. and junk yard runs

So the shops gonna throw it in for you?

yup for the tune of $600. when i get the other one in the trunk it is going back to chicago where it came from and i will be getting my $332 back for it