I'm in the final stages of the build on my Z and I believe that I've hit a SNAG. I converted the car to five lug stub axels..modern motorsport chromoly, got CV companion flanges, CV half-shafts and an R-200 diff out of a 81 280zx turbo. I have been reading alot of these threads and unless I'm mistaken, my diff is OPEN! I plan on some hardcore autocrossing and I need alot of traction. I have been considering the Quiafe ATB set-up..It sounds like what I will need for the output of this engine. Keep in mind I have done all of this due to the destruction of my original R-180. I could really use some help before I proceed. Thanks