Dust caps not fitting

Dorman 1397*
A little oversize.
I have a fridge in the garage.
I put them in the freezer to shrink them.
One was easy, the other not.
The not was after I opened a Yuengling and took a couple gulps.
I tapped them on with a 1 inch drive socket.
The Mr Gasket ones that everyone recommends do not work... Too shallow.