MB GPW G503 WWII Military Jeep Wiring Harness installation WW2 Restoration. Installing your wiring harness can be done by one person. Instructions are fair, but you want to make sure you run the lines correctly to avoid pinching. 1. This article is to help you with the wiring of your WWII jeep. These steps will be using a 45 Gpw and 45 MB and Related searches for ford gpw wiring diagram ford gpw engineford gpw saleford gpw partsford gpw jeepford gpw engine for saleford gpw body kitford gpw jeep for saleford gpw army jeep parts