First thing of note is that due to a copyright issue (assumed?) all of the gears are installed backwards in comparison to the quaife. This causes the axle gears to slam into the bellville washers on accel, presumably causing premature wear and failure.
Here is an illustration of the difference, (pic via batou)
Be sure when swapping all the gears around that BOTH axle circlip grooves are toward the inside of the case. This will ensure both axles will clip in properly.
Second thing of note is the poor quality of the stock bellevelle washers and stock casing bolts. The combination of bolt stretching and the breaking of washers has been known to lead to premature failure in these units.
The solution is to replace these parts. rbryant sells replacement bolts and washers as a package HERE, or you can source your own or reuse the case bolts and get new bellevelle washers HERE.
The actual orientation of the washers IS NOT as important as the final preload once you get everything put back together. The machining tolerances of these units make it impossible to suggest a universal washer orientation. The best advice is to try one, test it, rinse repeat until you get the proper amount of preload. Suggestions for various orientations are littered throughout the two linked OBX threads, so find the one that works best for you.
A good way to quickly estimate the preload is by counting the number of turns on the case bolts. From rbryant's writeup:
Rbryant's original writeup suggestion for the R200 washer orientation DID NOT work for me, so again, measure your preload and pick your own orientation.
The overall goal with the washers is that they get ~.8-1.5mm of preload. The bolts are a 1.25mm pitch so you can tell the preload based on the number of turns on the bolts. From the time that the washers become snug to the time when the case is fully clamped by counting turns on the bolt. One full turn is 1.25mm. This means we want .5 to 1.25 turns from when the washers start to compress until the case is fully clamped down.
Examples of McMaster washer orientations:
John Scott - ())()(()
lbhsbZ - ((()()))
cygnusx1 - ()()(())
EMWHYROHEN - ))))((((
Stock Quaife - )()()()(
Examples of rbryant washer orientations:
())(() - (originally suggested)
)(())( - (what I ended up using)()()()
Also, if using a S30 or S130 ring gear, it will use the 10mm ring gear bolts. Some have said it is a good idea to use these spacers (10 needed) to take up the slack in the bolt hole, which was designed for 12mm bolts. If using a 300zx ring gear, it will use the 12mm ring gear bolts, and the spacers will not be necessary.
All other steps pertaining to installing this LSD can be found in your FSM, as it is just like installing any other open carrier. Hopefully you can re-use your stock carrier bearings, as I couldn't find them anywhere for less than $60 EACH.
For ease I will include a few important items below.
Suggested backlash: 0.0051"-0.0071" in
10mm Ring gear bolt torque: 43-51 ft/lbs
12mm Ring gear bolt torque: 65-72 ft/lbs
Carrier main cap bolt torque: 65-72 ft/lbs
OBX case bolt torque: 30-36 ft/lbs
Breakaway torque: ~10-15 ft/lbs (.5-1.25 case bolt turns from snug to clamped)