Mar 9, 2024 #11 S Scottm I'm Awesome Joined Aug 24, 2021 Messages 313 Reaction score 248 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.