Anyone know where I can get some replacement cable clamps for an R390A? Almost every one on my latest rebuild have disentegrated. The aluminum oxidized(?) and the rubber inserts just flaked to almost nothingness. I think they make these for the aircraft industry, but not sure where I can get 3 or 4 nor am I sure of the size(s) I need. Thanks!! Barry(III) - N4BUQ