Mar 9, 2024 #11 S Scottm I'm Awesome Joined Aug 24, 2021 Messages 305 Reaction score 231 Location AZ You will want the entire harness and ecm from the 8.1. The 7.4 harness will be completely wrong for the 8.1 engine.
You will want the entire harness and ecm from the 8.1. The 7.4 harness will be completely wrong for the 8.1 engine.