Well, the Frontier was getting a bit long in the tooth and we were always traveling with max payload. So went looking at Colorados because I still like the midsize trucks. However, the actual payloads...
Kip is correct in returning the front 1/2 the distance. WDH are not for the purpose of leveling, they are used to transfer some weight to the front axle. If there is a problem with level, once the right amount of weight is transferred, then suspension upgrades may be needed.
Removing or adding too much weight to a truck axle may result in unsafe traction or handling.