On the 53 photos, it shows a modified vent tube with a hose attached. If you plugged that hole, you should still have a vent tube.

I believe the cab overs had a pcv system but I would have to do some digging to be sure.


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!