Unhooking wiring harness from cab?

[Brandon_]

i could use some help i'm currently doing a cab swap and i can't figure out how to unhook the wiring harness from the fire wall and pull the harness out, its a 97 chev 1500 5.7L

 

[someotherguy]

96-up there's a torx bolt deep in the center of that block. It's captive in the block so you turn it until it's loose and pull the block apart. The block has a tar-like goo inside that helps waterproof the connection so it's going to have some resistance.

Richard