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4L60e, 4L65e, 4L70e to 4l80e conversion harness


harness1.jpg


This harness is plug and play; no splicing involved. It is extremely easy to install. Besides the physical aspect, it simplifies the PCM side of the swap. There is no segment swap (GenIII) or fancy programming needed (GenIII and IV). Converts any 4L60e, 4L65e, or 4L70e to 4l80e, car or truck, even 97-98 LS1's! For 07-later vehicles with seperate trans controllers, an 80 swap can be particularly difficult with the older style harness. With the removal of a code or two from the TCM, that's all you need to get the ball rolling. It retains cruise control and OEM shift indicators. This cable retains FULL LOCKUP at lockup speeds, even at zero throttle. End the annoying cycling of your converter if you originally did it the other way. Made in the USA by PCMofNC!


If you cannot remove the transmission codes needed, we can do this for you for $25 + S/H. Full transmission tuning available with purchase for $100 + S/H or included for free when purchasing any mail order tuning, including the lower priced tuning for bolt-on mods. Please read further below for details.
Solution Graphics
4l80e conversion Harness - $249.00


IF YOU NEED TO SEND IN YOUR PCM FOR PROGRAMMING, READ BELOW:

Please print the following PDF form (or get it bleow) and mail it with the PCM.
If you cannot print it out, use it as a guide and include the information with the PCM when shipping it. Typical turn-around time is next day. Some go same-day and if work load is very high, PCMs may require 2-days for programming.

PLEASE do not send ANYTHING except the PCM and worksheet. PLEASE do not ship the plastic PCM bucket or the PCM seals. If you have removed the seals, re-install them on the harness connector before re-installation, not the lip on the PCM.




If you wanted Full Mail Order Tuning (which would include eninge tuning as well as programming for this harness and more, unlike the smaller update listed below), Please go here and choose your option from the list. For DTC removal ONLY or for Transmission tuning ONLY, please see below.

Please shoose Programming Option from below if required:
Choose Programming Option Here


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