I know that my Lonestar drag axle is probably half the weight of the stock axle setup. My +12 swing arm and axle are probably half the weight of the complete stock axle hubs, rotor etc...
JJ&A was quite a bit out on axles according to him about 2 weeks ago. My buddy talked to him down in Oregon at the Redline open house dyno day. He ordered his axle from Shearer. A few guys on Ebay have them in stock.
Aaron