Balancing the drive shafts on a M715? Never in my memory have I heard of it. Can't believe it'll make a bit of difference in the way the truck drives. These are heavy rugged vehicles that shake rattle and roll when going down the street. Add to that some heavy lugged tires, ie, Michelen XL1100's, and a balanced shaft I don't believe is going to make any notable difference. Just my opinion, but I'll bet alot a people are going to chime in here. Stay posted.
militarypotts Spec/4 Military Police, Vietnam Era, "Does the noise in my head bother you? Welcome to the Twilight Zone!"