I am curious as to what you guys either think or would do to correct this. The vehicle is a brand new 4x4 Silverado crew cab. The frame has some sections that have rust from the factory I guess you could say. What would you recommend to do in order to get rid of this besides sanding and painting. Is there something that can just be sprayed on to kill the rust and cover it up so it looks better in the wheel wells. Especially in the rear?