New Ball Joints won't take grease.

Hey scamp, did you find a solution? I was installing my front suspension today, and I went to grease up my tie-rods and had the same problem. I didn't get around to the balljoints, but I imagine they'll give me guff too.

While we're at it, could someone recommend a good quality grease to use? I'm not sure what the shop had in their guns, but I was thinking about getting some mobile 1 grease from autozone. Does anyone have a better suggestion?