-You're so right, there has never been a successful zxt lsd swap into an s30 with out one-off axles. Good observation. Can we get back on topic and have some real world experiece with the obx, please. I also read internet threads both for and against obx reliability and functionality they all seem to point out the importance of setup. Questions like "condition of diff prior install" and "previos experience setting up/tuning with obx diffs" I feel are some of the important ones. The Honda croud loves these things, and they also have an expensive factory JDM option, but tons of guys run obx's because they are cheap, plentiful, and the set-ups well documented. I'd love to be able to say the same for the r200, unfortunatly at this point I can not.