I have a 92 f150 302 that's dead. I found a used 302 with tranny out of a 89 bronco that has 57000 miles. I'm wondering if the wiring harness and computers will just plug and play or would I have to do some part swapping from the 92 to the 89.

 

It's doubtful that your swap would be simply plug and play from an 89 to a 92. Be prepaired to do some swapping.