Question from a newbie... I think that I'm sure that on my xxxt the rear wheels should spin oppposite when on the stand, if not I'm good, if they're supposed to than I have a problem. I locked the diff and set the slip so why is it spinning in the same direction? Or should the diff. not be locked? Thanks for the help....

take the cover off ur spur gear and hold the spur gear and rotate one of the tires, the other side should spin in opposite direction. No u don't lock the diff. at least I never have heard of such a thing u should do

all my trucks do this, the thing is because when you have brakes applied it stops the diff from rotating the same way, and makes the tires spin the opposite way. if you dont have brakes applied it makes the wheels spin the same way. If you lock your diff it will burn out and you will have to replace it.