The only side gear I can recall breaking was being used in an off-road Race truck.

I don't remember reading about any other side gear issues, just Spider gears.

Mikeyo you just call up Dana and ask them for the CAD I'm sure they'll comply.

I hope that someday, if the 4 gear setup is proven unreliable, someone will machine new spider gears to use. I know Xterraracer is working on a Spool, but that would suck on a daily driver.

Other than that save up on the Mod money for Sas and better 3rd member. Definately keep the X unmodified until then to keep the warranty intact.