I am replacing my ball joints with Cobra Valley joints today and having trouble completely removing the old rubber seal cup. The old cup must have been glued in to the upper control arm at the factory. I've got 99% of the rubber cup off but finding it very difficult to pick every little piece out of the control arm socket. How important is it to get all of this out? The instructions don't talk about using glue or difficulty of removing the old boot. Of course, I don't want to allow any dirt into the ball joint, so I think I can get a reasonable seal with a little of the old boot left in there.
And Happy New Year to everyone!