Hey guys i recently purchased a 2008 dodge diesel mega cab.Love everything about it so far however just the other day when i put the truck in reverse it started to shake real bad? At first i thought it was the muffler or something so i took it to a buddy who has a muffler shop he took a look and said everything is tight. So i have an appt on mon with the dealership it has 36,500 miles out of warranty, has anybody had this problem? its only in reverse when im in drive its fine.... thanks for the help guys.