How do you get 1 pint of gear oil in the ball? My truck is a '41 GMC and is a long wheelbase model. It has a short torque tube and ball about a foot long exiting the transmission, then another tube and ball on the drive line. I always thought they got oil from the tranny...I am hearing noises and I think I know why now...I know there ain't no oil in either ball. Please advise. Jim
