hey guys. i have an 07 tahoe 4x4 with a turbo.
i destroyed my 4l60e and have a 6l80e with a bw4485 Tc at the shop.
what i understand is that, that transfer case is awd.

i have an 246gm 272 ratio transfer case from the 4l60
and my front diff is hu7 8.25 63hu7.

what combo can i do?
Can i transfer the old tc to the new trans?
do i need an awd front diff to use the 6l80e and tc thats on it?
maybe there's an adapter.?

guys steer me in the right direction. im willing to buy either a tc or front diff if need be.

have any of you used true blues conversion for the ecu instead of getting a wiring harness?
True Blue Motorsport

 

I have the harness from true blue motorsports and plan on installing it this weekend but there are other ways to get a 6l80 where a 60e was. I would think it best to use the transfer case that came with the truck to prevent comunication issues between the case and bcm.

 

Do you know if the splines will match or if an adaptor is needed?

 

Also let me know how your 6l80e install goes and what I should look out for. Are you 4x4?

 

Nope 2wd. I think they sell an adapter for that but your specific conversion is rarely done so info is scarce.

 

Really scarce!!!

I'd do a 4l80e waaaay before 6l80e.

 

more reason 2 do it

 

so far im gonna use true blue for the electronics.
swap the input for the TC to 32 spline.
and now just trying to find an adapter. i emailed some places asking if the np241 adapter will work.
do any of yall know?
getting excited.

 

Well i got my 6l90 in my truck. Holy hell what a difference. I am running a cilrcle d triple disk billet converter though so its not a apples to apples conversion but the whole thing just feels way better. Cant believe i didnt do this sooner as ive had everything for like 2 yrs just sitting on the shelf.

 

Just waiting on true blue and circle d. I have a 3200 single coming. Gonna take the time to paint the front diff,Trans and transfer case dark green.

For others looking the transfer case adaptor on the 6l80e worked for my np246.