Entered model # in the search box, looked up a list of symptoms and concluded the problem between the motor and transmission.
Looked at repair videos, removed the motor/transmission according to the video, and found the motor-transmission coupling broken.
In disassembling the washer found it needed additional parts: agitator dogs and filter plugs
While waiting for parts removed inner tub, (just like in the video) used a small pipe wrench and rubber mallet to remove the spanner nut and lifted out the inner tub. Removed old washer filter from the bottom by detaching tabs from inside of the center tube (not easy) and found rust between the plastic filter and metal tub (probably the reason that type of filter was discontinued)
Cleaned outer tub and agitator parts with hose and brush.
Unlike the original coupling which was all plastic, the replacement coupling has a metal insert.
When first installed coupling didn't slip far enough onto the two shafts so when the motor was installed, clips were difficult to attach and when I managed, the motor shaft wouldn't turn. Removed the motor and gently drove the coupling parts onto the motor shaft and transmission shaft with a punch and rubber hammer (apply punch to metal, not plastic, socket might work better). Move the couplings to the full length of the flats on the shafts. Then reinstalled the pump and clips.
Originally installed the motor was backward so electrical connections and pump hoses did not match. No problem, detach the motor clips and turn it 180 degrees and reinstall the clips.
Cleaned the transmission shaft and coated it lightly with new grease, slid it back into the center hole, but had to shake and tap it some to get the transmission mounts aligned and seated, then reinstalled the bolts. Reattached electrical connections (don't forget capacitor wires) and reattached hoses to the pump.
Re-installed agitator parts exactly like the video. Lost the agitator bolt although somehow I kept the rubber washer. Got a 5/16-24 x 1" flange head cap screw from Advance Auto (4 for about $4.50).
Whole job more involved than I expected, but the videos described it perfectly. The washer was definitely worth fixing.