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Yes, that should work. You can swap over all of the wiring also. The Yukons ECM can be retunned for the 4l80E, but ether way you should be good. Just FYI, there is a forum just for 1988-1998 body style GM trucks. It is,
www.gmt400.com.
That forum is the number one forum for these trucks. Lots of knowledge there.
The trans harness is the same for the two or is it sidferen
Honestly, I'm not sure. I have not tried this swap. Why don't you post this question on www.gmt400.com. someone there can answer it.
honestly not much reply over there of answers.
 

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ChriswithaVortec, I have the 99 K2500 4x4 and now have a broke #7 piston. I’m looking like you to either do a rebuild or new motor And curious what you ended up doing? we use the burb for ski trips and off road trips pulling a trailer from Texas. Wondering how your project ended up?
 

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Iv been looking for your thread and cant find it.
 
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