Desperate - fuel cap - truck and bus parts - wrecking yards

[hippieforever3]

I'm still desperately seeking Susan (a 3 inch fuel cap) the tow on eBay
were 2 1/4 inch.

I appreciate everyone's advice and effort.

The best advice I received, I feel, was to find and use a truck / bus
wrecking yard.

I can't imagine it being practical to try to go to all I can find so a
phone list might be WONDERFUL.

Can we start a phone / address book of places to check for old parts?
or have I missed one that is already in existance?

Regards,
GPSGary
Currently in Moro Bay CA wording on a coolant leak
1984FC35