Nice work!
I just had to replace the one on my 92 Kenmore 70 series. Originally last year, I had replaced all the parts in mine except for the spin gear. Didn't think it looked too worn out, but then upon having run it with the new neutral drain parts mixed with the old spin gear, it was way worse than before. Sometimes even a full 14 minute wash, it would wait a moment in neutral drain but then would slip once it was getting close to emptying the water all the way out.
So a few weeks ago, I took the machine out to my shop and replaced all the parts again with a brand new kit (I had two on hand, one of them already spent the first time on the same machine unfortunately). This time however, I replaced everything in the kit, including the spin gear, put a new one in so that now it should work correctly with all fresh new parts. And it does now.
Well, ended up putting in an oil that I didn't initially realize had a limited-slip additive and so it would absolutely STINK of gear oil everytime you ran it. It also was a thinner oil than what Whirlpool normally recommends--75W-90. So it sounded differently from what a direct drive should normally sound like. So just this past week I took it out again and put 80W-90 gear oil from a different brand that had no limited-slip additive. Now it works perfectly with no smell, haven't actually listened though to hear how it sounds, but I imagine with the better viscosity oil in there, it should be back to normal now.
Good luck with your machine!