I lose one of the bleed screws (the one atop the thermostat housing). Anyone know where to get a new one or what size it is? Thanks.

 

You might be able to take the other one to a hardware store or Pep Boys and see if you can find a match. You might have to hack it down to the same size, but it'd get you by until you can get a replacement from a dealer.

 

1/8" NPT threaded radiator drain will work. You can find them in the HELP parts.