Hello, I am new to this forum and this is my first post.
I have a 1996 GMC Sierra 3500 with the 6.5 Diesel. This truck had a worn out motor and slipping transmission. Currently in the process of finishing a motor and tranny swap on this truck with a motor and transmission from a 1999. I chose to not use my original engine & transmission wiring harness from my 96 because it was in very rough shape. I decided to use the harness from the 99 instead. Everything seemed to go well until I got to these three plugs (Shown in photos) that are behind the glove box. I see they are not the same plugs and will not connect together.
So, my question is what are my options in this situation? I do notice that each wire or pin has a corresponding letter. I also notice that the bigger white plug coming out of my dash, and the bigger black plug coming off of my newer harness has a lot of the same color wires associated with the same letter on each plug.
Is it possible to change the connector an make this work? I cant seem to find a printout diagram for these particular connections.
Any help would be greatly appreciated
Matt
I have a 1996 GMC Sierra 3500 with the 6.5 Diesel. This truck had a worn out motor and slipping transmission. Currently in the process of finishing a motor and tranny swap on this truck with a motor and transmission from a 1999. I chose to not use my original engine & transmission wiring harness from my 96 because it was in very rough shape. I decided to use the harness from the 99 instead. Everything seemed to go well until I got to these three plugs (Shown in photos) that are behind the glove box. I see they are not the same plugs and will not connect together.
So, my question is what are my options in this situation? I do notice that each wire or pin has a corresponding letter. I also notice that the bigger white plug coming out of my dash, and the bigger black plug coming off of my newer harness has a lot of the same color wires associated with the same letter on each plug.
Is it possible to change the connector an make this work? I cant seem to find a printout diagram for these particular connections.
Any help would be greatly appreciated
Matt