I know this post is a couple years old @SlippyD but just wanted to add my 2 cents. Couple reasons to run a shortnose diff. 1 availablity the older long nose r200 are getting harder to find. 2. Stub Axles. With 280z stub axles, when they break, your wheels roll off into the sunset and you probably end up in a ditch or wall or tree, etc. The S14 hubs stay on if the axle breaks. Considering how much money and time I have dumped into this car it is a small price to pay for that piece of mind. Some people run really expensive stub axles that help with the breaking issue but if for some reason they did break your in the same boat. 400+ HP and a lot of torque I am running the t3 swap with q45 shortnose, the t3 axles and s14 hubs. (kind of the same answer as above but with a bit more detail.)