If you are going to do it like me, have the following things:

A glove (thicker is better), Long sleeves (hot rubber burns), Door open (rubber burning makes for a good cough), Goggles to protect your eyes, Fire Extinguisher and pail of water to cool the hot mounts.

FIRE! I was trying to get the old sleeve to pop out using a torch when I realized the mounts burn nonstop.

After blowing it out the old mount was soft and the garage filled with black (cough) smoke.

I used a dremel with with a pointed metal cutting tip to go around the old rubber part.

Wear eye protection. The hot pieces of rubber really fly around and they burn.

Taking a hammer and a big screwdriver I beat a circle out around the old mount. The melting rubber from the torch helped.

It popped out and I used some vise grips to pick it up and toss it in the pail of water.

Using a reinforced cutting blade and the dremel I started to cut out the old sleeve. You can tell when it is through. The mount itself is a tougher metal and does not cut easily. With the right blades it does not take a lot to cut the sleeve. Try not to destroy the mount of course.

Wear Goggles!!