Driving through a farm field and something hit the oil pan and cracked it with a hair line fracture, 1/8 inch, and oil leaking. no visable damage or marking until pulled from truck, even than no marks but a slight dent in plastic. no other visable damage anywere else under truck. asked if all oil pans are plastic and i was told by dealer, yes. this is a truck designed to for off road heavy duty work. *tr