I wonder why it came loose in the first place. Could the balancer be cracked?

Just a comment but I think the sleeves that you read about go on the outside surface of the balancer shaft to mate properly with the seal. They have nothing to do with the fit on the crankshaft.


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!