Same day? Different day? Who knows. The work needs to be done regardless of the day of the week. So we press on. LOLOLOLOL 'press on' I'll see myself out.
Bearings and bits and baubles are in and let's assemble some gear stacks.
There's a joke here. I just can't quite put my finger on it.
Now you'll look at this picture and start to feel really great...and I forgive you.
Look closely and you'll find the yellow paint. It correlates directly to this next picture.
The tooth at 12 o'clock may or may not have a crack in it. FML
Everything back apart and back into Peter's parts hoard we go...
Some time passes and Peter's track day comes and goes and UPS brought us a present.

Kaaz 1.5way diff stays on the shelf while we address the gears.
Second gear replaced and box back together.
Fifth and reverse go on and we're all feeling pretty good. All that's left is the diff, right? LOL WE WISH.
Tighten down the spider for 5/R and all of a sudden there's a hard-spot when turning the gears. This hadn't been there earlier. What's changed? Everything is lined up and enmeshed and there's no play anymore. That's what's changed.
Off comes the fulcrum on the bottom of the box and out comes the pen light.
You may not be able to see the tiny yellow mark in this picture.
But you'll see the larger yellow mark in this one.
Here are some shots of that third gearset and its tiny peened corner on one tooth.
You can only see it from very specific angles. What the fork.