How much is too much (lower ball joint interferance)

[Kevin Mac]

I have been working on replacing all control arm bushings and ball joints on my G body front clip. Everything was going fine until I tried to install the lower ball joint. It has .020" interferance and it just seams like it is too tight to go in the hole. I bought Moog parts thinking they would be good. I think .010" would be plenty for interferance fit. I may run a flapper wheel in the hole to loosen up a touch. What do you guys think?

Thanks Mac