Raytheon owned both SQ, Modern Maid, Coloric and Amana for many years, when Raytheon wanted to get out of the appliance business they sold it to Goodman [ the air-conditioning company ] I don't think that Goodman ever had any serious intention of staying in the home appliance business.

They quickly began selling off parts of of the companies they bought and the commercial part of SQ never was part of Goodman and it became its own company and used the name Alliance Laundry Systems, ALSs agreed not to compete in the residential laundry market for about 10 years after this all this reshuffling.

  Goodman continued selling off assets and closing down factories and selling appliances mainly under the Amana name. Just before GM took control of Amana, Amana had introduced a line of built-in refrigerators to compete with Sub-Zero and while nice looking they were plagued with problems.

GM sold the line to Viking who immediately started selling built-ins and they are still a total POS. One of the venders we deal with is exchanging and scrapping as many as a dozen Viking Professional BIRs every month.   When Goodman got done gutting pillaging SQ, Amana, MM, and Coloric  they sold what was left to Maytag.

  While the GM built and SAV MT versions of the SQ washer design did have more seal and main bearing failures than earlier SQs it should be remembered that the SQ perforated basket washers from their introduction around 1980 were never great washers and always had plenty of early [ less than 6 years ] seal and bearing failures, water pump problems, they were belt eaters and generally noisy average performing machines at best. They actually got better under GM and MT in capacity, spin speed and overall performance.

  We our currently selling a lot of SQ TL washers and while they have greatly improved the seal design that lead to so many early main bearing failures they still [ like every washer ever built  ] still have faults.   Current TL SQs are very difficult to repair and most will be junked when they eventually develop seal, bearing or transmission problems. They really need a dual-action style agitator and they need to go to a neutral drain like they do on the machines they sell in Australia. 

I always hate hulling away a 20 YO WP or KM DD washer and installing a new SQ knowing that I am hulling away a better performing washer than the new one I am installing.   John.

I didn't know that D&M ever had any relationship to MM other than building crappy DWs for MM along with about 30 other companies. D&M became part of WCI, - Frigidaire-Electlux, fill me in if I missed something, Thanks John.

Had no official ties when it came to ownership of each other, as I mentioned earlier D&M made DWs for nearly 30 different brand names and D&M was not tied to a single one of these names. And wisely they never tried to market a D&M DW on its own merits which would have made the Yugo Automobile [ in the US ] look successful, LOL.