Blade carriers can be swapped around as long as it has the boss with the 2 ears on it, the thing is the nut is different between the PT and F/C. One thing I haven't tried is fitting a boss from a sidepull F/C on one of the really early motors. If anybody wants to know I can check it for them, never really looked. Regarding the powder coating of bases, I stripped a Victa mower down yesterday that had done a minimal amount of work (wheels, bushes all as new) and the only reason this mower was dumped was because the body looked so bad because of the rust that had grown under the powder coat. This mower would have been in much better condition if the customer had bought the thing with no coating on it whatsoever. It would have had surface rust but nothing like it had. This mower was not that old because it had very late model wheels. I guess the reason manufacturers powder coat mowers is to speed up the rust process.