I'm not sure about the 14 and 15.
There doesn't seem to be any info I can find on the wo4c. I'm hoping here someone can help.
My truck needed a turbo at 80,000 mi. and a head gasket at 160,000mi.
It has 180,000 now and runs great. It has a large 5 -speed non od cable shifted trans hooked to it.
Truck is awaiting a transplant into my early bronco, though right now I'm building a new frame for it.
I have the factory manuals but see that I'll have to take the trans off and start measuring to get going.
Paul