They technically only need the internal carrier. Since you will bolt your stock gear onto the LSD assy and install it back into your housing. I agree that I'd rather them have the whole housing also so they can be sure that it will fit in the small space allotted.

As far as cost to ship... well, i paid $120 to get my junkyard unit sent to me from Florida (I'm in GA). The 3.27 unit i bought from one of the forum members said it was $60 from TX to me... I know this doesn't sound like much, however I don't have money to throw away right now. However, I'll do what I can to get this ball rolling.

As far as gears... if we can't run a different ratio because of the TCU, then why would I want to have someone make me a different ratio?