Suzuki Wagon R Manual page 1368

3E-4 REAR SUSPENSION
8) Using special tools indicated, draw out axle shaft with brake
back plate.
Special tool
(A) : 09942-15511
(B) : 09943-17912
9) In order to remove the retainer ring (1) from the axle shaft
(2), grind (3) with a grinder two parts of the bearing retainer
ring as illustrated till it becomes thin.
CAUTION:
Be careful not to go so far as to grind the shaft.
A : Without ABS
B : With ABS
10) Break with a chisel the thin ground retainer ring, and it can
be removed.