On the right side, the plate with 5 bolts should have a star wheel arrangemewnt accessible from the outside with dreum removed. The star wheel adjusts axle end play. From memory the FSM calls for .012" but I set mine a little tighter, .008 with a dial indicator. Once adjusted, there should be a retainer that holds the star wheel in place. The retainer is held on by one of the the 5 studs/nuts on the right side.