See also:

Temperature
High temperatures accelerate the rate of corrosion to those parts which are not well ventilated. ...

Moisture
Accumulation of sand, dirt and water on the vehicle body underside can accelerate corrosion. Wet floor coverings will not dry completely inside the vehicle, and should be removed for drying to ...

Hitch ball
Choose a hitch ball of the proper size and weight rating for your trailer. ● The required hitch ball size is stamped on most trailer couplers. Most hitch balls also have the size printed ...