I have seen at least one kit with a threaded rod and cylinders that can be used to remove and install the bushings, similar to yooper182's design, but no welding just wrenching. I recall the cost was ~$50.
I have this tool, unfortunately it sucked the bushing out and left the metal shell in. I paid about the same price. Seems like nothing comes easy in these old cars but....the juice is worth the squeeze!
