I use heat sinks on both motors. This is the first rear motor that has went bad. also I use the heat sink compound . Three main motors have been replaced to one rear one so it's lasted pretty good I guess.I wish they didn't burn out but they are fairly cheap.Just have to order them.I need to keep a couple in stock cause it takes time to order them.I'll try the new way to repair the aluminum fixing plate if it strips out again. Thanks
Gary