couple questions i should have asked before hand

HEY A GEINUS IDEA FROM A CONVERSATION A FEW WEEKS AGO. THE PINION BEARINGS ARE *** PAIN TO TAKE OFF FOR SHIM CHANGES. GET A NEW BEARING AND GRIND THE INSIDE A BIT TO SLIP OVER THE PINION FOR SETTING IT UP THEN REMOVE IT AND PRESS THE NEW ONE ON. Thanks @bendrinking