[awesomebase]

Tug-o-war proves nothing in trucks... you want to win it? Just put 1000 lbs of sand bags in the bed before you race... I guarantee even your 10+ year old F150 would win. All it proves is how good your tires are and how much weight is over the rear wheels.
Aside from that there is never a situation where that would do anything. At least in races, you can pull out of a toll-booth or get onto an on-ramp with gusto, but those tug-o-wars are useless...
Have fun!