I saw a posting here asking about building a 10 bolt or upgrading to a stronger
axle. I looked back and can't find it so I'll add this new thread.
While in the out house clearing out my inner most soul I saw an article in the March 2006 Car Craft Magazine where they "budjet built" a 10 bolt axle. There is some pretty good info in it on housing ID, axle shaft upgrade and posi unit etc. It's geared towards building a car axle but it's similar in concept.