Use a bolt/nut that will pass though the bush(ing). It should be long enough to bottom out and get a socket or wrench on the head.

Once bottomed out, place the nut where it will be close to the back of the bush(ing).

Slide a flat head screwdriver down till the head is next to the nut. Pressing on the side of the nut will keep it from spinning.

Using your fingers tighten the bolt clockwise till the nut slide up making contact with the back lip of the bush(ing).

Using a ratchet/socket or wrench, tighten the bolt head while pressing the screwdriver against the nut to keep it from spinning. The nut will slide up the shaft while it presses against the bottom lip (or wedge inside the bush) of the bush(ing), pushing (or pulling) it up and out.

This is a 1964 Austin Healey 3000 Mk III
People commenting it's called a bushing, for my car it's called a bush.
https://mossmotors.com/pilotbush?ass...