Hey Mike.
Part of the reason I want to know who makes them is because I really only want to buy this. (picture taken from the net)
I know it is unlikely to have that happen but I would like to make my own axle housings anyway for a more scale look so only having the "pumpkin" would awesome. Of course if I could find a pair of complete straight axles for a reasonable price that would work. I don't want to pay $180US each plus shipping, duty and exchange only to throw away half of the parts.

I'm not in a panic though so we'll see what comes up.