Sloshing noise while shaking drum when not in use is this normal also banging noise during wash cycle are they related

SOURCE: thumping and banging

make sure all shipping pins are out the tub should move all around from side to side if it level still bangs its eather the balance ring top basket are there 3 slides on a plate above the motor just put some silacone oil on tham move around

SOURCE: Thumping/knocking/rattles during wash agitation cycle

Mine is doing the same thing. I opened it up to see what was happening and it was the drive belt tension arm bumping around. Soon, the belt started slipping during the spin cycle. Now it won't spin and the belt starts to smolder from the friction of the drive motor. If you haven't checked your belt, that's a good place to start.

SOURCE: kenmore series 80 washer makes loud knocking noise during spin cy

Unless your front loader is set firmly on concrete and leveled to perfection, the force of a heavy wash load spinning in excess of 1000rpm will create a bit of vibration and noise.A firm footing is your best defense against to much movement.
Also due to the earlier movements during the spin cycle, the shocks that are used to dampen the spin cycle might have been broken or damaged.
If the problem persists inspite of proper levelling, please do check for the shocks or might have them replaced them for good.

SOURCE: Kenmore 80 Series washing machine - loud banging at end of spin

With the lid open, set the cycle to spin and press the lid switch button with a pen. Wait until the drum gets to full speed and release the lid switch. If the drum makes a knocking/ thumping noise and doesn't stop spinning within 2-3 seconds, the basket drive block is worn and needs to be replaced. (The basket drive block is located on the gearcase drive shaft, under the tub and agitator) If this has been happening for a long time you may need to replace the brake and drive tube assembly as well.

Basket drive block part number is 389140

If that's not it, let me know and I will try to help you further.
Good luck!

SOURCE: kenmore front load washer #44072 drum banging noise

I have the same problem...the solution is called new washer. I was told it could be overhauled to the tune about $600...barrings are going out. Mine is just 7 years old and that's disappointing.