undercoat floor

Evidently Phaelax has never looked at the front floors and trunk of a a body or b body, them big rust holes came from under the carpet and in the spare tire well holding water,not from underneath them, and that being a tracker he is wanting to cover the floor from inside is a good ideal ,especially if its a rag top and some times get caught in a rainstorm, with the top down, While bed liner might not quieten it, i done my 2008 ram bed when it was new and if you park on an incline in a rainstorm ,you will have a foot of water against front of the bed, i had to take out a front drain plug so it wouldn't hold water.I have nevr saw any rust on my truck bed floor or sides. GO FOR IT