I can tell you that nearly all of those trucks are capable of serious off roading. It would be nothing for the Siblings to stick maybe 20-30, 000 into a truck and not blink an eye. A lot of the guys wont wheel their trucks becasue of the mess but believe me they are capable. If i wanted I coud bog my truck today/ minus a tool box in the bed. Its very hard to keep a truck clean for shows if you just drive it/ mudding it would be nearly impossible.