The hole is there to stop the tube from siphoning and the clip is there to stop dirt from getting in. This is described in a GM document, I just don't know which one it is in.


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!