What size tanks are you using, are you covering them with a tonneau or leaving them open? I am considering a very small tank (1-2 gallon) with a 150 psi compressor for air horns, roadside tire assistance, and small emergency air tools. Was thinking of putting it all inside the weatherguard toolbox or maybe under the F350 truck bed with a skid plate to help keep it cleaner. Why are you moving yours into the bed?