Had a few people ask me offline what the true cost of going to the ford 8.8 was costing me, so I figured I would put it here...
8.8 center unit/pumpkin and axles from pickapart - $140.00
Ford Racing track-lok LSD and complete differential rebuild kit - $309.00
CV Axle parts from Mooreparts.com to use Porsche 930 axles - $390.00
Ford truck Axles and Dodge intrepid hubs - $209.00
Complete conversion kit made by Will - $1100.00
I sold my R200/Q45 MML setup to another member for $1100 with no shipping required because he picked it up. so that's a nice off-set on what the total cost was, but assume $2100 for this conversion. So what's it get you anyway? It gets me serviceable parts same day from most dealers in the FORD network and more importantly, GEAR selections and LSD availability for very reasonable costs. The Nissan stuff, although strong, isn't always easy to get parts for and I don't know of anyone local to me that services them. I'm sure they are out there, but I haven't found them. Even MORE important to me, is the fact that the intrepid hups and the Ford differential parts are VERY easy to service and replace parts on if I am at the track. As a matter of fact, the differential centers are cheap enough, I could see having two units sitting in the car trailer ready to swap with taller or shorter gears.
Anyway, that's enough on the topic of differentials and why I switched.