87 p/u, 22r Head Gasket job. Silly questions here, I just about have my truck put back together (finally) and I noticed that I have 2 little nipples (yeah, I know I said it <img src="/forums/images/graemlins/smile.gif" alt="" />) sticking out of of the lower part of my radiator, 1 on the passenger side and one on the driver side.

The passenger side one is caped with a rubber cap, the one on the driver side is not.

Is the driver side one supposed to be caped, is a hose supposed to plug into it? Any idea?

Thanks for the help

-Pete