I had a 77 Power Wagon. I worked at 2 Dodge Dealers back then. The problem was due to lack of grease the steering knuckles would wear out and just replacing the bearing and retainer kit would not always solve the problem. The big hole in the knuckle would wear just enough that the wheel would still wobble if axle was supported by a floor jack. Solution is to find a knuckle that is not worn out so bad.