05 GTO t56 to 4l80e

[Jakes05ls2]

i am in the process of swapping out my t56 for a 4l80e. and before i make the choice to go full manual VB with it i would like to know if this would work. i am willing to get a t42 tcm and wire it up just like factory (i work at a gm dealer so i got access to all pin outs and special terminal tools and such) and tie in to the data wires. the only problem i am seeing is if i can get a segment swap or something to put in the tcm that can run the 80e. i know the 05-06 gto s ran the t42 ( i think) and that like 07 or 08 up trucks suv and full size vans ran the t42 if they had a 80e trans. any help is greatly greatly appreciated

thanks jake

[Bill@HPTuners]

There are no segments to be swapped in the T42, its either there or it isn't in regards to a 4L80 or 4L60 operating system.

[Jakes05ls2]

so is there any way to do this? should i try and get a used tcm out of a 4l80?
or just go with a manual VB

[Bill@HPTuners]

Its up to you, I don't know anyone thats done the swap personally.

[Jakes05ls2]

is there any thing that you could recomend that might make this set up work?

[Bill@HPTuners]

Not really other than ask around to see what others have done to get it to work.

[Jakes05ls2]

thanks i appreciate your input. i am not aware of anybody that has made it work lol. guess that where trial and error come in. if i get a tcm that works on this do you think it will still be adjustable through hp tuners?

[Bill@HPTuners]

It might be possible if the os you use is of the same year as your gto

[Jakes05ls2]

thanks ill keep posting any progress i make. im getting a tcm monday and gonna start wiring things up then

[Jakes05ls2]

how do i change my pcm from a t56 setting to automatic set up?