Diesel Place banner
1 - 5 of 5 Posts

·
Registered
Joined
·
421 Posts
Discussion Starter · #1 ·
wondering if I can put a 06' allison 6 speed in a 03' that has the 5 speed. Is the wire harness the same ?, Is the TCM wire connector's the same ?. I have aready bought the 06' 6 speed. It has only 5000 miles on it. Would like to make it work. thank's
 

·
Registered
Joined
·
870 Posts
I'm not 100 percent sure. But I think that you need the 06 TCM to make it work if it is possible. I know that a lot of wiring changed in the dash for the tap shift handle. So it may only be possible with a suncoast 5 to 6 speed conversion TCM.

I'm sure somebodu with more allison knowledge will chime in and be more helpful but hopefully this can give you a better idea.

-Kyle
 

·
Registered
Joined
·
421 Posts
Discussion Starter · #3 ·
I would really like to get this to work, but if it's tomuch of a PITA I will probly sell it and put a Suncoast stage IV in mine.
 

·
Registered
Joined
·
2,909 Posts
A ton of work the data requirements are different, talk to Ben here, he was working on one here a while ago....
 
1 - 5 of 5 Posts
Top