Kenmore Washer Spin Issue - Need help...

Model:
Kenmore 70 Series (Top load, Direct drive)
Model 110 24722300
Serial CP3801719
Approximately 3.5 years old; relatively light usage
Issue:
The drum recently stopped spinning during spin cycle. All other functions seem normal: timer/electric, draining, agitating, etc.

- I've checked the lid switch (jumpered the power with case off)
- the clutch operates/turns during spin operation
- the pump removes water during spin operation
- the motor coupling appears to be intact and operational
- there is no sign of oil, fluid, or water leaks around any components
- there are no metal or plastic filings present
- there is nothing caught in or between the tub
- the drive block appears intact (if I am looking at the right part)

I am assuming I have a clutch or brake issue. The brake does not appear to disengage during spin (although I can still rotate the tub manually). I rubbed a small amount of silicon lube on the brake drum, but it didn't appear to help.

I've removed the outer case (obviously), the agitator, the pump, and the motor.

Any guidance would be appreciated before I completely (or unnecessarily)disassemble the machine.


Thanks much,
Stacy