Ok ive got a 98 chevy truck with a 4.3 and auto trans that i wanna swap for a 6.0 and 4l80 out of a 2500. im gettin the engine, trans, wire harness computer all together. Im gonna drop the motor and trans in no problem but the wiring i need a lil help with. My question is how to connect the engine harness to the truck cab connection, im guessing i need to connect the proper wires to the cab or sumthin?? does anyone have a pinout of the harness that come out of the cab?? Or can at least guide me in the right direction. Plz bear with me im new to the swapping!