Frigidaire was tub makes loud thump noise during spin cycle....

Sounds like one of the balancing springs either broke or came off.

There is a rubber belt between the motor and the rotating cylinder.
If it is frayed, then part of the belt is hitting something during the "wash" cycle, and rubbing much faster during the "spin" cycle.
Replace the belt.

Most likely tub bearings and spider gear are bad.

Could be the spider arms are broken. You can confirm this by turning the tub by hand, if you hear any kind of thumping sound as you turn the tub, then the spider is broken. The spider is the support arms that hold the wash tub to the drive shaft. It's very expensive to repair.

If there is no thumping sound when you turn the drum, it could be that one of the supports or spring is broken. Hope this helps.

Bearings shot or counter weights have come loose

Take the top off and check the weights first

support bracket that supports the tub is breaking. stick your hand inside and push up and down and see if its coming apart. if u look at it when it runs does it wobble?(the tub) if not take a look at the pulley on the back and see if its wobbly.

Good morning! It's common to hear a loud thumping noise during spinning because the load (clothes) are not properly place in the tub. Please try to put the load in order & compress it down. best regards.

It doesn't look like a motor problem !!! It seems like an unbalanced tub issue. The machin has suspension dampers and suspension rods, and it's look like one of them was damaged or "run away" from its location during machin's movement. Goog luck !!

I replaced the drive block and it solved my problem. (thumping noise at the end of spin cycle) Easy repair. Videos on utube show all the steps.