It's not a live axle. Haven't measured, but I think it's a 5/8". Tempted to convert to live axle, but my trails are twisty, so the dead axle is probably more appropriate.
Cartsrus.com shows it's discontinued and no longer available.
The reason I need one is that I want to mount hydraulic disk brake on the non-drive rear wheel. I may have to turn a disk hub to weld onto the existing rim. Or maybe I can just use the driven sprocket if I can situate the caliper without interference.
Tom