I'm not entirely sure. This blog post is the first I've heard of it. Although Steevo over at rugged rocks and I have had conversations about both the locker and additional gears for us. Reading on some of the Z32 websites, it seems as if it is possible to sorta of mix and match 300zx gears into our (Armada/Pathfinder) housings and as well know the 300z crowd has a lot of gear ratios available, i.e. 4.10's etc.