4l80 swap

Reply Subscribe

Thread Tools

Search this Thread

09-13-2018, 05:45 PM

joesmobile1

Registered User

Thread Starter

Join Date: Sep 2018

Posts: 1

Likes: 0

Received 0 Likes on 0 Posts

4l80 swap

i'm looking for a diagram to wire a 4l80 using a 4l60 tune

Reply Like

09-13-2018, 06:25 PM

arthursc2

TECH Veteran

iTrader: (5)

Join Date: Jan 2014

Posts: 4,288

Likes: 1,217

Received 1,433 Likes on 1,061 Posts

Not possible, have to segment swap.

Welcome to the forum, we have a very nice search function that will answer almost any 4L80 swap question you'll have.

Reply Like

09-14-2018, 07:45 PM

darkirish63

TECH Enthusiast

iTrader: (5)

Join Date: Jun 2011

Location: NC

Posts: 640

Likes: 219

Received 46 Likes on 38 Posts

Quote:

Originally Posted by arthursc2

Not possible, have to segment swap.

Welcome to the forum, we have a very nice search function that will answer almost any 4L80 swap question you'll have.

If you use a conversion harness from Nelson or PCM of NC, you don't need a segment swap.

Reply Like

09-14-2018, 10:08 PM

arthursc2

TECH Veteran

iTrader: (5)

Join Date: Jan 2014

Posts: 4,288

Likes: 1,217

Received 1,433 Likes on 1,061 Posts

Before I admit defeat or accept that as fact, I will have to research it. Shift algorithms are different so not sure how wiring gets around that.

Reply Like

09-15-2018, 05:07 AM

madmann26

TECH Addict

iTrader: (7)

Join Date: Feb 2013

Location: Somewhere north of 285, south of 985.

Posts: 2,987

Likes: 5

Received 371 Likes on 299 Posts

Quote:

Originally Posted by arthursc2

Before I admit defeat or accept that as fact, I will have to research it. Shift algorithms are different so not sure how wiring gets around that.

The Nelson and PCM of NC harnesses use relays. They’re tried and true but expensive.

I would prefer wiring in the front sensor and repin the harness with segment swap.

Reply Like

09-18-2018, 07:55 AM

zz454Chevelle67

Launching!

Join Date: Apr 2013

Location: Buda, Tx

Posts: 265

Likes: 550

Received 64 Likes on 52 Posts

I am running a 4L80 on the 4L60 tune and got all the info here in one of the stickies, had to wire in a 5 pin relay for 2-3 gear solenoid. If that relay comes unplugged tranny will go into limp mode, really sucks, I found out this Sunday thought I killed another tranny, relay was gone but was an easy fix. Zip tie mod now LOL. I will look for the info and post a link. Use the search thats how I found it a few years ago.

Reply Like

09-18-2018, 08:47 AM

tgui

TECH Fanatic

Join Date: May 2014

Location: VA

Posts: 1,252

Likes: 4

Received 7 Likes on 6 Posts

Quote:

Originally Posted by madmann26

The Nelson and PCM of NC harnesses use relays. They’re tried and true but expensive.

I would prefer wiring in the front sensor and repin the harness with segment swap.

A million times this. Its not very hard to do as well. Move some pins, add a speed sensor, tune. Done. 100% OEM function.

Reply Like

4l80 swap

4l80 swap

Trending Topics