yes, what Tim says, plus, if you cover it with a tarp, do no lay the tarp directly on the truck, put some boards between to "tent" it a bit so air can circulate between the tarp and the metal, otherwise you may as well not have any cover
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics