I can't think that would make a good trans for a truck. The T-56 and the Vette ZF 6spd are both double overdrive transmissions. 4th gear is direct drive, 5th is 0.74 over and 6th is 0.52 over.
There is also the shifter location. It would be under the seat, way under. There are no optional shifter locations like a Tremec or different tailhousings like a T-5.
