Kenmore 110 VMW basket won't spin freely

I am receiving an F7E1 error code on a Kenmore 110 series VWM drive top load washer. When I run the automatic automatic test mode diagnostic, I get good cold water, good hot water, good both water, good agitate, and good drain. I hear the shifter, but then I do NOT get a spin. I confirmed all of these with the manual test mode - my problem is BOTH the low spin and the high spin.

I replaced the shifter with a new part. But I continue to have the same problem.

I removed the basket and double checked everything with the pump and I see no coins, lost socks, etc. But I continue to have the same problem.

At this point, I continue to have the F7E1 error.

Also, I am UNABLE to perform the tachometer verification test as the basket does NOT spin freely.

Also, I am UNABLE to complete the calibration test; after approximately 2 minutes of test, I get a flashing lid lock error.

I confirmed that the motor works, and that the belt is in good shape.

I confirmed that the bottom of the motor turns and then doesn’t turn when I manually move the shifter from one position to the other position.

Since I’ve tried a new shifter, and since I’ve removed the basket to ensure I don’t have problems from the top, I’m wondering:

1) how do I diagnose the problem in the drive from the bottom? What’s keeping the basket from spinning freely? (or should it not spin? - I saw older posts suggesting that the basket doesn’t spin freely unless the top is locked, but then I don’t understand how one could manually spin the basket to perform the tachometer verification?)

2) why am I unable to perform the tachometer verification test?

3) why am I unable to complete the calibration test?

Thanks, in advance, for any advice you may have. Respectfully,