What is the best way to remove the OEM bearings and bushings?
Driving the bearing out from the opposite side it best. If you can’t do that, here is another alternative. In most cases, roller or needle bearing cages are case hardened. While this is good for wear resistance it tends to leave the bearing cage somewhat brittle and this makes them easy to break with impact. The best way is to try to fold the bearing cage in on itself using a good punch and hammer. This method will USUALLY break the cage and make the bearing cage easier to extract from its cavity. Be sure to wear protective clothing and safety glasses when performing this procedure. With Roller Ball Bearings, extracting them is usually a little less challenging, especially when they are whole. Be sure to remove any snap rings, retainer clips, or bearing retainers that are used to hold the bearings in place before attempting to remove them. Look for lips on the surfaces around the outer or inner edges of the bearing that could cause resistance to the extraction of the bearing. Hitting t