C Caine B New member Apr 30, 2010 #1 i have a 1989 ford bronco 2 with a 2.9l engine and I'm wanting to change it over to a 4.0l engine an i need to know what is required to swap them around. Do i need a 4.0 wiring harness or can i use the 2.9 harness?
i have a 1989 ford bronco 2 with a 2.9l engine and I'm wanting to change it over to a 4.0l engine an i need to know what is required to swap them around. Do i need a 4.0 wiring harness or can i use the 2.9 harness?
