I've got 3,052$ in my swap total! But remember the converter alone was 1,088$! And the billet flex plate was 356$ so if you don't go with just those two thing it can be done for around 1800$ if you do the work

 

Nice!

 

Heres a question for tuners out there. Is it possible that when the truck is put into Tow Haul that it doesn't go past 4th? I'm just thinking that since 3rd is my 1:1 right now, and that what I tow my Travel trailer in. 4th is 1:1 on a 6 speed. That would be a good crutch for me until the TU/TD mod is figured out.

 

All you would have to do is set the upshift parameters.. i dont see why it wouldnt work.

 

I think this would work for me, It would keep the dang trans from constantly shifting and driving me crazy lol

 

It can be done im sure.

My tow/haul is my tu/td

 

Guys, not sure that it matters, but I used the cluster from a NNBS police pursuit Tahoe. A little work with a Tech2 and everything works -TU/TD and no navigation error messages plus 140mph. Radio still works.

 

did you avy already have a 6 speed or did you convert it?

 

well i got a 08 rcsb gmc5.3 h/c, 4l60e with 411s.i bought a 6l90e with the converter and flywheel from the ly6.all this will work rite,harness,3200 yank converter,what else?will a 2012 rcsb 6l80e drive shaft work ?do i need tranny lines work on my 4l60e?

 

You need different trans lines, wiring harness, slip yoke. I cant verify the driveshaft swap would work, some measuring and you'll know for sure.


Lucille: some more info on what you changed with the techII would be great. Im sure i could find a buddy that has one.