Lower ball joints

[Tilt]

I'm finally getting around to installing My DJM spindles. I've got everything off, the LCA trimmed for clearance, 1 coil cut off the spring, and figured I'd replace the ball joints while I'm at it. Everything is ready to go back on. I'm assuming you have to remove the rubber dust boot from the new ball joints to install them, If that is correct, how do they come off. I've tried to knock them off, but didn't want to force them. Any advice would be greatly appreciated. Thanks