Whirlpool Washer #LLT8233AW1

I just replaced the coupling, with no change. It makes a clicking sound from drum area while its pumping, no spinning happening. No issues with washing.

It could be something is keeping the basket or drum from spinning. Or it could be the big gear inside the transmission has stripped some teeth off.

https://www.appliancepartspros.com/whirlpool-neutral-drain-transmission-3360629-ap3096209.html