hookin' depends a lot on the driver...i've pulled a lot of truck that with the right driver...would have drug me around in circles...I've pulled a 3rd gen. cummins that was chipped with my stock 7.3...was it because my truck is more powerful?...hell no...it's because the dumb b*****d was trying to change gear during the tug-a-war
Good luck at the tug-a-war