I noticed the front wheels were not pulling a while back. Power to the front diff was good from the dash switch. After getting the ranger up on jacks I could hold the front driver's side wheel and keep it from spinning. Pulled the axles and drivers side splines are worn pretty good and slipping inside the diff. Passenger side isn't too bad but I plan on replacing both along with wheel bearings and bushings while I am at it. My concern is the hubs inside the diff (not sure if that is the correct term) are also worn from the play in the driver's side axel. I plan on pulling the front diff to take a closer look. Can it be rebuilt or would it be cheaper to replace the whole thing?