This may or may not be a problem, hook up the washer to water and run at least a dozen loads through it and see if there are any other issues before you start tearing the washer apart because there may be other issues and you probably only want to tear it apart once.

I have this same pair in black in my 2nd home.

John L.

Both WP and KM had a DD machine in the end of 1981, 

Some of the many reasons that the change was made of course was cost of manufacturing, the DD machine has 60 less parts and is about 70 pounds lighter.

The DD machines from the very start were more reliable, they had almost 1/2 the warranty call rate in the first year alone.

The DD machines were far easier to do major repairs on, this was a big challenge for the laundry industry to be able to have washers that could still have major repairs done in the customers home at an affordable cost to keep manufactures from having to replace machines completely or lose their shirt if it needed repair.

The DD washers quickly became the only TL washer that was easy to replace ANY part on in less that  1/2 hour in the home, it was estimated by WP that after 10 years of DD washers being in the field that several thousand less repair technicians would be needed nationwide.

Overall the DD washers were a huge success with well over 100 million being produced over their 36 year run 1981-2017, but it was time to move on. [ I think I am safe in saying that the DD machines were the most produced TL automatics ever even far surpassing  MT  Helical Drive machines produced 1956-2006 .

The design of the DD machines did not lend itself to the faster spin speeds needed or much lower water and electricity use that is needed if the world is to have any chance of survival to the year 2200, the savings in water and energy in the last decade alone have been enormous and necessary.

John L.