Idler Arm Bushing

Two connection points:
Off the center link: I have used a tie rod puller.
Off the frame: 1. Unbolt it from the frame 2. Spray it good with WD between the shaft and bushing. 3. Reinstall nut a few treads and wack it with a plastic hammer. (no not a toy but one with hard plastic to protect the nut or threads.

I used a long 1/2" threaded rod and a few appropiate sized sockets to remove and replace the bushing after the 2 piece Idler arm was removed from the car.
A stop nut or vice grips can keep the threaded rod from spinning, an extra large socket on the bottom to catch the old bushing. A deep socket small enough to displace the bushing but not get stuck in the Idler arm is used to displace the old bushing.
Install is the opposite, using a socket just large enough to contact the flange at the top of the new bushing to press it in, pretty straight forward. HTH.
mannyjoe