2009 Suzuki 400 LTZ Quad Sport Service Manual, Page 396Get this manual
Rear Brakes: 5) Push the rear brake disc plate housing (3) and remove the stopper ring (4)6) Remove the rear brake disc plate housing (3) from the rear axle Install the stopper ring (1) 4C-9
CAUTION
The removed stopper ring must be replaced with new oneI933H1430036-01
7) Remove the O-ring (5)5
I933H1430039-01
Apply thread lock to the brake disc bolts and tighten them to the specified torqueNOTE The stamped mark "A" must face to left side of vehicle: Thread lock cement 9900032130 (THREAD LOCK CEMENT SUPER 1360 or equivalent)