I have a Kenmore washing machine model # 11020854990 which recently had a loud banging and knocking sounds during the final spin cycle. Now I notice the drum seems to have dropped down about an inch plus the drum seems very loose when I move it side to side. However, it spins evenly with out a load in it. Any suggestions.

SOURCE: Kenmore front loading HE3 makes knocking sounds during spin cycle

Ours started knocking several months ago and then progressed to a high pitched sound when in the spin cycle. I manually turned the drum and heard and felt a bearing roughness. I lifted the drum assembly and felt a fair amount of play, which I think the initial knocking noise came from. On the sears web site a new rear drum mount cost 293.00. Today we went and bought a LG model wm2455hw at Home depot, on sale until 2/20/08. I couldn't see paying to repair a machine that only lasted four years.

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: 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: Washer making noise during the spin cycle

Hi!!! it looks like your motor coupler is failing..Good luck..

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!