[Skyboi]

Originally Posted by QShip

What about spraying underneath the truck with some type of silicon dressing to prevent rust?

Dressing the underside of the truck will only make sense if you're going to "show it" let's say at a car show. Other than that, if your looking for protection, A commercial undercoating would be the answer. The silicone or oil/water based dressings would have the opposite effect. They would collect dust and dirt. Then when that dust and dirt got wet it would act as a sponge holding the moisture to the frame then creating an accelerated corrosion

In potential problem areas my advice is .... CLEAN and DRY

Good luck, hope this helps