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  1. M

    4L80E swap?

    Howdy, I have a 1991 GMC sierra K2500 light duty and I wanted to swap to a 4L80E. I currently have a 700R4 but it's leaking bad and I want something that can handle a little more power. I wanted to go to a junkyard and find a K2500 with the same engine and a 4L80E and get take the wiring harness...
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