Originally Posted by Granpa

What many new to Minis don't realize is that throughout the suspension and steering components extensive use is made of air bearings. These air bearings are marvelous components because they are free, frictionless, invisible and self-installing. They are of the proper side and modifying parts and the air bearing holders can interfere with their proper function.

It usually is best not to mess with the air bearings and leave as installed. Just keep the air bearing holders in the various parts in good order and keep the various components don't loosen and allow air bearings that are too large or erratic in shape. The general rule is to not mess with air bearings until you have extensive experience with them. Manydon't even know of there existence