Have you try the Advanced Search?
Example: Type your state (TN) in if looking for a sale item
Example:If it is a normal thread ( 1970 C30 jack)
You have to use certain terms to find what you are looking for.
It can be a long process.
Just keep up with your search terms on a sheet of paper
and try several different ones.
Including how a word is commonly (misspelled)
Hope this helps