I'm still all just for using a press (first choice) with a socket, just smaller than the hole you want to press the bushing through, backed with a larger socket or piece of pipe to support the piece holding the bushing underneath it.

My second choice, also my first choice when you can't use a press, i.e., the frame-mounted front-lower-rear-most suspension bushing, is to simulate a press by using a carriage bolt, threaded through a half-inch drive socket, larger than the bushing you want to remove, with a socket just small enough to force the bushing out on the other side. Put a nut and washers on the small socket side and use an air impact wrench to squish them together and out comes the bushing. Reverse the procedure to install the new ones. Use a good amount of forethought and it's safe and effective.

The special tools do the exact same thing, at a much greater cost.

John B.