The diffs ultimately went together exactly like any other Tekno diff does. Since the center, front and rear diffs essentially go together the same, I figure there is no need to go into detail on all 3 diffs.
This is my method;
I start by greasing up the groove in the outdrive shaft and also on both the diff and spur/ring gears.
Then I start building a "parfait" per say. Grease, o-ring, grease, metal washer.
Once I am at this point I shove the greased outdrive into the spur/ring gear and diff cases (not forgetting to install the bearings first!
With the grease the pushes through I wipe off and dab it on a gasket that will be used (no need to waste it).
Now I install the pins that hold the outdrives in place. The diff and ring gears are super simple. The diff cases are I guess a touch easier than the old diffs due to being bigger otherwise its the same technique. Line up the hole in the outdrive with the grove in the diff case and then you have plenty of room using some long nose needle nose pliers to reach down and push the pin into place.
Now I drop one of the sun gears into the diff case and fill with oil to just cover the gear.
While that is sitting I take my blade and spin it around in both sides of each planetary gear. This is to "de-bur" the gears and makes sure that they spin as free as possible.
Then assemble the cross pins making sure that when I drop the cross pins and planetary gears they are still seated correctly. Then I fill with oil again this time just above the top of the planetary gears. I then slowly rotate the gears so that any bubbles under them are freed up and can escape.
I drop in the second sun gear and top off with oil as needed. Then the diff sits while I work on the others, giving time for as many air bubbles to escape as possible.
Once I get them all to the above step, I wipe down the first diff I started with my thumb to make sure that there is the perfect amount of diff oil.
I continue on with the first diff to allow the other to rest as long as possible. Using that extra grease I had I spread it on both sides of the gasket before putting it in place.
Before placing the gear into the diff case I line up the pins with the holes (its just an easy point of reference to use) and then on the diff case rotate the outdrive so that the slot for the pin is line up in the same manor. If you do this and even get it close you can usually just wiggle it in place.
I like to use my little hook tool for lining up the holes, but many things will work in its place.
Then I tighten all the screws down alternating so that the gear and the case seat evenly.
Then repeat the final step with the rest of the diffs.
