Whirlpool GSQ9631LL1 can't remove inner tub

Washer Repair
,
1

Brand:Whirlpool
Model Number:GSQ9631LL1
Main Symptom:Can’t remove inner tub
What happens & when:After I remove spanner nut, inner tub will not come out

Error Code (if any):
Parts or tests already tried:
Photos / video link:

2

Try rocking the basket from side to side. I have also used a little WD-40 around the gearcase shaft.