Redesigned inner tub in MT AMP style Washers
This probably would have helped somewhat with the serious sediment redepositing they had with their early washers. I have always felt that MT really tried to make their appliances perform better, last longer and made them easier to service the longer they built them.
Their biggest problem was when they initially brought out a new appliance design it was usually much less well throughout and tested than appliances from Whirlpool, GE, Frigidaire and even Westinghouse. Serious design, perform ace and durability flaws existed in their Helical drive washers and the SOH dryers that went unfixed for decades, but they did eventually fix them, Yay.
John L.