So as far as i know, 06 is when they started putting the 6 speed in the duramaxs. prior to that it was a 5 speed tranny. my question is, if i buy an aftermarket 6 speed automatic allison, will my truck just accept it? obviously i would have to do a pc reprogram cause the truck is use to 5 speed and not 6. But i guess what i really want to know is, is it do-able and how much am i talking price wise? I know the tranny is going to run in the ball park of 6 to 8 grand. i will do all the work myself, but when it comes to the pc, is there a programer i can purchase that will fix the trans settings?

 

you will need a tcm as well, ppe sells one therye is some other little minor things

 

what other lil minor things we talking about here?

 

wiring. you all you really need is a valve body and tcm.

you can add the shifter as well

 

Inglewood Transmission
Give Mike L. a call. He's the guru.

 

will do, from what i gather its been done many times before, since ppe offers the parts to do the upgrade.