How to 4L60E to 4L80E trans swap

[farmtruc]

OK. I've been researching various diagrams of the PCM and transmission...

Thanks

I kind of remembered you're interested in doing the 80e, if you don't have the harness and ls pcm and etc.

I just ran into this in the latest GM HighTech Mag.

http://www.powertraincontrolsolutions.com/

[ms38w]

I kind of remembered you're interested in doing the 80e, if you don't have the harness and ls pcm and etc.

I just ran into this in the latest GM HighTech Mag.

http://www.powertraincontrolsolutions.com/

Allen,

I have a manual transmission now. The shift indicator reverted to "drive" (I'm not sure when it happened), and I need to read a "park" or 'Neutral" to engage "4LO". I've emailed the guy that did my build, and he doesn't think he cut the P/NP harness off, but doesn't remember what he did with it. I've taken the dash apart to see if it is tucked in there, but haven't been able to locate it. Thanks for the link to the trans controller, though...but it won't help my situation.

[RedHeartbeat]

I had to use the 60e arm on mine. There are adjustments on the cable plus you can also move the mounting bracket on the transmission by bending it.

[mattc]

I had to use the 60e arm on mine. There are adjustments on the cable plus you can also move the mounting bracket on the transmission by bending it.

ahh ok i didnt know i could swap the arms. i'll try that tomorrow thanks.

[mattc]

here is what i ended up doing to my linkage to make it work

i used the old lingake from the 4l60e and flipped it around, cut a notch and bent it some more then had a buddy weld it for me, and it works perfectly even drove it around some yesterday