Which is easier on the truck...TC or 5'vr

I only can compare my several TCs to two TTs that weighed around 9500 pounds. TTs seemed harder on Trucks.

I think none of those should be hard on any dually build in last 10 years.
5800lb TC will take F450 or suspension reinforcement on F350.
I had several RVs in my life and choose TC as that was the cheapest RV (having truck for business already) I could have when we slow down our RV trips.
No other fees beside purchase price and keeping the water out.
Any other RV brings additional cost and headaches.
That said, we full-time in our TC for couple of months and neighbor invited us the her new 30' trailer.
The triple slide, with both rears open huge living room and kitchen with center island.
Not too many stick homes have such space.
Coming back to load on the engine- the biggest factor is always frontal area while weight at freeway driving plays small role.
My TC with basement and attic makes 13' high, so not that easy at 70 mph

Concur, FW.

I've had both and it seems to me that the 5th wheel made the truck work harder.

kohldad wrote:
I would make the decision more on how you want to travel and how much room you want to relax. With a TC, traveling style is usually more on the move while the FW is much nicer for going to a base camp for at least a week before moving on.

DITTO.

The FW is easier on the trucks suspension however the TC will be easier on the drive train. However, with either, you can figure you will get over 100k miles out of the truck.

I would make the decision more on how you want to travel and how much room you want to relax. With a TC, traveling style is usually more on the move while the FW is much nicer for going to a base camp for at least a week before moving on.

I've had both with the same truck and the TC finally won out because I'm still working so cover more miles than sitting hours. After retirement, we will make a couple of whirlwind trips exploring the entire USA making notes on what we want to go back to enjoy in depth. Then we will probably switch to a FW or TT behind the TC so we have more room when we go back to visit our favorite places more in-depth by staying longer.

FW is probably "easier on the truck" since the truck is carrying much less weight.
However, I don't go easy on my trucks. I don't abuse them but I do work them hard as they're designed to do. If a truck won't do what I ask of it then it gets repaired or sold.