There are people who will post every time that if you put some firewood in the bed that you are over loaded. They over react and panic at the thought of putting something heavy in a big truck. It is easier to just ignore some post.
DRW 3500 truck you can drop almost any TC in there and go. All the upgrades will improve your drive and quality of life and even minimal upgrades are well worth it if you intend to put in miles.
SRW 2500 and also 3500 trucks are also quite capable.
You don't have to fear anything, but you can improve handling and driveability with these upgrades.