4l80E transmission swap

[85SmokinDetroit]

Does anyone know if a early 4l80E 6 bolt torque converter will bolt to a j code 6.2 flywheel, I’m aware of everything else I need to make it shift correctly behind a mechanical diesel, but unsure about the linkages, any info, maybe one from a 1991 sqaurebody?

 

[Barrman]

I bolted a 1994 4L80E to the stock flex plate on one of my trucks. I remember at the time I was doing this the main thing was diesel torque convert to diesel 6.2 or 6.5 flex plate.

You will need to swap out the internal wiring harness on a 1991 4L80E to the 1994 and newer plug for any aftermarket controller to plug in. I suggest no matter the year of the transmission swapping that plug and harness out for a new one. The seal in the plug dries out and will let ATF get into the electrical side of things with age. A new harness is less than $100 so it is a worthwhile upgrade in my opinion.

 

[85SmokinDetroit]

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I bolted a 1994 4L80E to the stock flex plate on one of my trucks. I remember at the time I was doing this the main thing was diesel torque convert to diesel 6.2 or 6.5 flex plate.

You will need to swap out the internal wiring harness on a 1991 4L80E to the 1994 and newer plug for any aftermarket controller to plug in. I suggest no matter the year of the transmission swapping that plug and harness out for a new one. The seal in the plug dries out and will let ATF get into the electrical side of things with age. A new harness is less than $100 so it is a worthwhile upgrade in my opinion.

I bought a new re-man 1996 4l80E so it should have the correct wiring harness. But main question and area of grayness for me is, the torque converter to flex plate & gear selector linkages I’m gonna convert the linkage to a cable shift. (Should work?) & the converter I was wondering if a 6 bolt converter would bolt to the stock flex plate of my 85 6.2. Just curious on the bolt patterns thanks.