I also have an 01 AC.... it clunks and jumps from time to time shifting from2 to 3rd and I just had a few issues w/ hard shifting

mostly going into reverse but just moving the lever was very stiff.
There are lots of threads on this issue.
Mostly the OD gear goes out, some say if you are not covered by warrenty to drive w/ od off.
The last quote I saw was around $2300 not sure if'n that included labor
I wonder if the 07 6 speed would fit? and what the $$ differance would be.
another member just posted their ?new/ re-build? was toast at 25 K, with luck thay had a 3/36 on it.
Good luck and please post your expierances for the rest of us slobs, would ya:ts:.
Repo