the geniues@ the dealer weaseled me into a oil changeand i gave in because it was due and the price was right,boy was i wrong! yesterday when i went to get the drain plug off i seen that the 9/16'' head on the plug was patrly rounded off,in the clockwise direction. when i tried to get it off it was tighter than hellno wrench,socket of any size would work sears bolt outs niether. i lucked out with a huge channel lock pliers on the shoulder of the plug i got from genos thank you who ever that was who makes then. when i weld a nut back on top of that plug it is going back on. that was the first& last time ill let them clowns work on my truckunless its wrrenty work. carl