Okay okay and I missing something here?
I removed the rear wheels,then using an impact driver and penetrative oil, tried to remove the set screws ( flat slotted ) one hour later...........nothing going to move.
so I've cleaned and greased everything else and put the wheels back on.
I've tried everything short of heat but working outside on the driveway isn't ideal.
now with a left hand /palm covered in blood blisters from the driver I give up for the day
dooh