On the outside of my differential on my 53 Chevy truck there are 3 bolts evenly spaced on the front of the case near the torque tube These bolts have double nuts on them.

What is their function ????………..COULD THESE BE WHAT HOLDS THE REAR OF THE TORQUE TUBE IN PLACE ???


One of them is dripping oil and I am fearful of trying to correct this leak until I know what it`s purpose is.

Thanks in advance...….J

1953 chevy 1/2 ton with 3 speed 318 on floor and 1955 235 engine