Need to know the model and configuration in order to answer this.
The 2006 Mack Granite CV713 has a gross weight of 62,000 pounds. The front axle weight is 18,000 pounds and the rear axle weight is 44,000 pounds.
a general rule with straight ( as opposed to trailer) trucks was a maximum Gross weight, particularily with heavy building materials or expendable cargo of 32,000 lbs or as is better known- l6 Tons. This was the allowable all-up or NYMGW for tor the time-honored Model Ac Mack Truck.
Depends on the model, configuration, and specifications.
The same as it would be for any other three axle straight truck - 54,000 lbs, legally. What the actual capacity of the truck is depends on the frame construction, and the axle weight rating (an on road vehicle might have a 12,000 steer axle, and 40,000 lb tandems, whereas a dump truck would have heavier duty axles).
In 1980, Mack made several models of truck, including conventional and cab-over-engine models. The weight will depend on a number of factors, and knowing the model as well as the make is necessary to get a ballpark figure.
What model and configuration? You could be talking about anything from a single axle to a centipede or superdump. Typical GAWR for a tandem truck is 50,000 - 54,000 lbs... it depends on wheelbase, type of road it's on, bridge law formula, etc.
That's a really vague question. You could be talking about anywhere from 12,000 to 45,000+ lbs.
22,000 - 25,000 lbs or so.
At a Mack Trucks dealership.
Mack doesn't make a pickup '1/2 ton' style truck.
Either a Mack or a Cummins engine.