drive out the inner steel bushing first with a hammer and punch/chisel combo. Then attack the rubber with a hammer. If the hammer doesn't work, take a 1/2" drill bit and start drilling a bunch of holes in the rubber. It'll come on out after that. The new aluminum bushing goes right in, its tight fit, but it taps right in with a hammer. Be warned, the aluminum bushing transmits a good bit of noise to the inside of the car. If you have a locker, you'll be feeling and hearing it engage more so than before. Other than that, you'll love the Cal Tracs, they work great.