Since this is now a Diff Information Thread I might throw my 2 cents in, however its more aimed at somebody fitting up an LSD centre into an open diff
A couple things I have discovered as part of building my R200 Recently
*Tools you will need
Datsun/Nissan Factory Service manual - haynes Manual probally won't tell you anything.
Dial Gauge & Mag Base
Tidy Area To work
1/4 dr Inch Pound Dial Torque Wrench ( for preload measuring )
Gear Marking Paste
*When Working on your IRS Diff it is really usefull to have it "G" clamped onto a metal bench or surface
*When you measure backlash it is usefull to clamp the input flange onto something so you get a totally accurate reading every time.
*It is Very Important to get your Backlash exactly back to where it was so it wont make horrible noises. Getting it right can be tricky and will probally take you ages. it also helps to burgle a variety of diffierent size Datsun/Nissan shims from some broken or parts diffs before you Start
*Wilson Brother Sell Handy Packet of Universal shim stock that includes a whole bunch of diffierent thicknesses which one can cut out with scizors for various preload adjstments ( mainly side bearings and backlash )
*Check your Diff's total preload with an inch pound dial torque wrench BEFORE you pull it to its, i have discovered this to be an excellent indication of the condition of a Diffs Bearings. If you have close to Zero preload all your bearings are shagged or the diff is poorly setup.
*If you do need to remove your Pinon Shaft ( on an IRS OR R200 DIFF ) you can actually use a large 2 jaw gear puller instead of using a hydrualic press.
DO NOT BASH ON THE NUT WITH A HAMMER, you will ruin the nut or the thread and it will make you Rage 10 / 10 . ( no i didn't actually do this )
Hopefully this saves somebody some time. I learned a lot and I can totally strip and assemble an R200 like a pro in no time at all now if anybody needs help
some of you guys might find this a good read principles are the same for most Nissan IRS Diffshttp://xenonz31.com/files/Z31%20R200%20 ... lip%29.pdf