they only work if they have yosemite sam on them

 

my truck came with mud flaps untill I started tearin up some lawns and they started fallin off. Underneath them was the only place my body was rusted. Needless to say I was pretty bummed when I found those rust spots..

 

Colorado man here... If you have mag chloride on the roads then mud flaps really do work. Also the rock tamers for removable towing.