USMC302 You can call TFS at 1-330-630-1555 from 9am to 5pm Eastern Time. I don't have the part number, but when I called them, they instantly knew what I was talking about and shipped it out that day. I think they were like $4 for both and shipping was like another $5 - which stinks because I only live 2 hours from them.
You may be able to find the part No. on their website which is
www.trickflow.com
Hope this helps.
E