Has there been any progress with a swap like this? I know a while back people were having computer issues, has anyone figured out how to make this a DIY type of thing?

 

john @ speartec is the only one i know of, He has installed one in a nbs, You will loose back-up lights,neutral safety switch and park/gear indicator. He has done it.

 

Why the problems? What is the hangup? PCM compatability or something like that?

 

IIRC, CAN-style compatibilty is 1 prob, along w/ what supersub said.

 

the items listed above are a result of non compliance. The 6l80 has all internal comp controlled system,while the 4l60 has external shifter mech. he piggy'd the factory pcm to retian the guages.

go to his site and read up on it. he explaines it well

Google speartec

 

I know of somebody on here who put a 6l80e in 00 RC w/ L92 and under less than optimal, went high 12's. He may've gone faster by now, I haven't contacted him lately. Point being, not how fast (but it's nice), but it can be done.

Speartec has done it. Another co. was workin on it, but every time I checked, it was still in devp.

 

Has any one looked into this with a 4x4 or awd truck. Or does that add a whole new level of complexity with the front end drive terrain geometry.

 

Has anyone ever tried the TCI 4l80 6-speed? It looks good on paper, and would probily be easier to wire in.

 

It probably would work better electronically, but i dunno if they make them in 4x4 form

 

it was the 7k Price tag that stopped me!Lol!