Re: WHIRLPOOL 3LSR6233EQ1 DRUM SEIZED.
Is it a Top Loader?
Assuming that it is a top loader then the drum has an automatic brake on it.
Does it agitate the central shaft during the wash cycle? if it does then it is probably the clutch and if it doesn’t then it will be the three piece coupling.
Jem
P.S. To remove the agitator you need to unclip the detergent dispenser off of it and look down the middle, there should be a plastic cap to remove which gives access to the bolt.