MD3000 TCM location

[Nomadicwildflowers]

Hey friends. I have a 2007 saf t liner with a Allison MD3000. Can anyone point me in the direction as to where my TCM is. I am taking it up to Allison mechanic to unlock 6th gear. Thanks in advance

 

[nikitis]

It's in several different locations. Depending on the day of install and who installed it.

Best thing is to follow the Fattest harness coming off of your transmission to a small little box a few square inches wide, and that's it.