https://speedqueen.com/products/top-load-washers.aspx
The owner said that the motor from a modern speed queen washer could be put in the 30-year old model. He showed how the speed queen springs are heavy-duty, while the Samsung and modern maytag springs are very light.
My dad took his old dryer to the store for disposal. When he went back a few days later, he saw his old dryer for sale. It'd been opened it up, the block that none of the Sears warranty servicers could find was removed, and it was perfectly usable. Someone else had recently abandoned a kenmore front loader into the store's possession - it needed a circuit board, and wasn't worth fixing.