Hmmm...I did not know that mustang seats would bolt up. I have exploder seats in mine right now. The guy I got it from hated the bench and swapped in the exploder seats.

I don't think you would have to modify the trans tunnel seeing as how these trucks were available with 4.0/5 speeds. I know that the trans is different for the 4.0 vs my 2.3. Cause if I couldn't "convince" my wife into a 5.0 i would definately swap in a 4.0 for a power gain. Crappy part is I would have to get the 5 speed from behind the 4.0. In a right frame of mind I would be better off selling mine and buying the previously mentioned setup.

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1994 sun faded (New Mexico/Texas truck) maroon, regular cab, 2.3 5 speed & 3.73's. Bought w/ 227k and climbing.