I have them in the SC, EB, NB, and NT. They seem to be holding up great. Much lighter than the stock pins. I ran the SC, EB, and NB at AMS and didn't see any wear when I rebuilt the NB for Texas.

I also had the original center diff shims concave in the NB but I've since switched it to the some of the original shims I bought forever ago. No issues since. I fill to about 1mm below the top of the case in all of my Teknos.