How To Remove a....
...bush that's frozen in a quarter elliptic spring if the spring is mounted to the car:
STEP 1: Using a 3/32" bit, drill a series of holes around the rubber part of the bush. After enough holes are drilled, the bit will "walk" itself around the inner metal sleeve of the bush removing all the rubber between it & the outer sleeve.
STEP 2: Knock the inner metal sleeve out of the bush.
STEP 3: Using a zaw-zaw cut through the outer metal sleeve of the bush in 2 places about 1/4" apart.
STEP 4: Using a small screwdriver, drive it between the metal sleeve & the spring leaf between the cuts, loosening the outer sleeve of the bush so you can drive it out of the spring. (I suggest you go to Sears & buy a Craftsman screwdriver so you can return it after you break the tip)
HOW To Install a New Bush with the 1/4 Elliptic Spring on the car:
STEP 1: (Use a round sanding disc to clean the inside of the spring where the bush goes, removing all the surface rust you'll find in there. Then, just a quick spritz of silicone spray helps the new bush to slide in.) Using a large C-clamp press the new bush into the spring as far as you can.
STEP 2: Make a portable press using a block of aluminum through which you drill a 5/16" hole. Insert a long bolt through the aluminum block & through the new bush. Put a couple of large washers the same diameter as the bush on the bolt & then the nut.
STEP 3: Using a rachet, seat the bush in the spring.
About an hour & a half per side!