[chon]

Here is a picture to show what I'm talking about:

I lost the rubber caps that cover the threads when installing my springs. Don't want them to rust over. Anyone know a part #?

 

[Ltngdrvr]

Just run by the dealer and pick some up or get some billet ones from any of the Mustang suppliers.

Plus, even with the caps they will rust unless you coat the threads with grease or some sort of coating.