I was hoping I had all questions related to this swap behind me, alas, not to be.
1996 Ranger, straight cab longbed. 5.0, tranny and rear from wrecked '99 Mountaineer.
I worked out the bugs and it is needing an oil change, (the 3rd) with 10K from combo hiway and "town" driving. MPG, 14.5-19.2...