Question about a 5th wheel and a couple of greenhorns

I forgot. If the trailer tires are more than 3 years old, plan on replacing them. They have date codes on them. With trailer tires, it isn't how they look that is important, it is age and you will have no idea how they were maintained (pressure, etc). Also brakes inspected and wheels bearings removed, iinspect and replaced or repacked. Peace of mind goes a long way on tires and wheels. Especially if towing great distance.