I would jack the rear wheels off the ground and then push and pull on the wheels to see if there is any endplay in the bearings. If getting both up at a time is difficult do one side at a time.

Cheers, Charlie
If It ain't broke, Modify it!
87 Montero turbo Converted back in Spring1989
95 Montero SR 3.8 DOHC Only one?
93 Pajero 3 door 6G75 Mivec with paddle shifted 5 speed
Then a Gen2 SR with full coil independent suspension.