MMP conversion axle

[RMKillR]

Hey guys, question. I cant seem to get ahold of MMP for this question, but im going to be running 121-144" extension, and im maching the offset into the extension's for 8" wheels. only going to be running the inside wheels. so im trying to figure out if i can use this axle for that. and does anyone running these know if the OD of the axle is the "stock" ID of the wheel bearing size?

http://mountainmachines.com/PConversionAxles.aspx

thanks!