Blackcat, the gearbox will work, but you need a tailpiece (that's the segment with the actual shifter) from a truck unless you are splitting the bench and want a center console.
Bowties, if your four speed is a true 4 speed, and not a low geared one like the original from these trucks, you probably don't need the T5. If, however, you have an original tranny (mine was a 420) then the T5 would be a huge improvement-and you notice it not only at the top end but around town. Since you have more (and taller) gears, you don't have to wind your engine as much between shifting. For drivability that tranny swap was the most significant thing I've done to my truck.
