Originally Posted by coolx
From what I've read about the TCM, issues with"dronning", and other transmission problems, IMO, I need a new TCM. I have this part number TCM 5140514-AA.
I have a three part question:
1. where could I find this part?
2. is there alternate part number?
3. does it actually cost $1200.00??
I'd liked to fix this before it gets worse. I've had the car for 6 months and I noticed incidental dronning but it's getting louder and I notice a clunking when I am slowing down and it down shifts. tighed1 I know you have some experience with this - any help would be appreciated. 
These sounds could also be made by a drive shaft mid bearing.