The Understeer DIY, right? . . .
Use a large bench vice or a hydraulic press to press the new bushing in to the bracket as far as possible. Then use a hammer to "fine tune" the position of the bushing in the bracket. The bushing should be centered in the bracket with even amounts sticking out of both sides.
Here's a little easier way: Using double stick tape, I placed spacers on one jaw of the vise, so I could press the bushings beyond flush with the edge of the lollipop. That way you get them centered w/o using the hammer technique.