This is the air cleaner that came out of my '63 CJ5. It appears to be in reasonably good condition with the exception of the missing oil cup. I have tried Quarter Ton Military, Kaiser Willys, Walck's, Midwest, Willys Works, eBay, eWillys and one other I can't remember. Not to mention looking at a number of sites in the "Where to Find Parts" thread. I did manage to order a couple, but they were either too big or too small. Any notions on where to find an oil cup to fit this particular model air cleaner?