Would you folks consider this rig sort of underpowered and overloaded as compared to a class 8 chassis?
Any comments on this principle?
Underpowered? Depends on what you're used too, but a 300HP Cat will get you where you want to go, slowing only for the steepest hills.
Overloaded? MAYBE, as the owner does not state the GVW. If it's 31-33,000# (which it likely is), no problem. That's pretty close to what you get when one axle is removed from a Class 8. BTW, as soon as the Class 8 axle is removed, it becomes a Class 7. Class is determined by weight rating only, not drivetrain. Anyway, if the GVW of the rig in question IS actually 26,000 (which I seriously doubt) it would be overloaded. Being that Renegade built it, it probably is spec'ed with the right suspension and axles for the application. They wouldn't have converted the truck if weren't. Renegade has a rputation to uphold, and insurance companies to keep happy.
I hope this helps you.