Can a bad ball joint feel and look perfectly good off the car? The boot wasn't torn and I couldn't feel any looseness by hand at all. Also it swivelled smoothly through the whole range of motion. Does the rubber boot pull the ball tight into the socket enough that you couldn't feel play by hand? I have a bad feeling my regular shop decided it was time to make some real money off me, and they said it needed both sides done. Normally I don't ask to see the parts, but I decided too on this one. Both joints seemed like new to me but I didn't shake the wheel while it was on the lift, and the mechanic said they were loose when they did that. My [censored] meter was reading high when he said that.