I would think that LMC would carry that part. A GM dealership may also be of help. The clip used on the arm was used for over 30 years so I am betting the ball was too.

You will want to take a good look at your flywheel surface to make sure that it looks good.

1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed

My Chevy Master 4 Door is on the Road!