Here's his thread that breaks down each staged diff and what to expect from them
https://www.s2ki.com/s2000/topic/558...able-products/

 

b.s. look at the way its built the caps are threaded so there is no need for dowels. i did my own ct caps j's racing pinion collar upgraded bolts. heads up if you have never installed a pinion collar have someone like puddymod do it i have built other diffs with a crush collar and you can adjust them but once the bearings seat my pinion was loose after breakin i sent it to ben and he blueprinted it for me. the guy is the most standup dude i have run across offering service on the forums. could i have torn it back down and reset it yes but i didn't think to check the ring gear runout as i didn't think honda would have something far out of spec but honda didn't build the diff so ben saved my ass