I have a 98 F150 w/ a 4.2 in it. I need to rebuild/replace it. I don't have the money do that at the moment. I just picked up a running 3.8 motor and tranny out of an 04 Mustang (for next to nothing). Will it fit in the truck without a lot of work and modification? Just as a temporary fix until I can afford to get the original fixed/replaced.