Denny,
the mains are shimmed for sure. On my 216, the rear frost plug was leaking and it used to drip antifreeze along with oil from the flywheel cover area. I have pictures of the seal being replaced on my webshots.

Fred


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!