Thanks again Jon... I just measured my AE95 hubs and they are just about the same. I can't seem to find my metric calipers, but my SAE calipers measured just under 0.375". Edit: found my metrics, and measured about 10.2mm...? Measured the same spot. Maybe one or the other is out of spec. But comparing one caliper to the other, the gap of the measurement is the same.
I find it interesting that the AE86 has 4x114 lug pattern and ~140mm diameter, and my AE95 is 4x100 and 145mm, yet the hubs are about the same thickness. The AE86 4x114 lug studs would be much closer to the edge of their hub than my AE95 and its 4x100 hub. There may be some wiggle room with machining the AE95 hubs. Just a matter of what is safe and what isn't. On the AE95 FB group, the question was raised about the durability of the hub being machined down in order to fit disc rotors over them. Someone else said that they had machined their hubs with no problems.
I was planning on fitting late model AW11 MR2 rear discs to my AE95 hubs, but the inside of the MR2 disc is about 130mm. So about 1.5cm of material would have to be machined off the AE95 hub. Interestingly enough the AE95 hub has a thinner section on the outside edge, beveled from the thicker part down to 4.65mm. The bevel starts around the 128mm diameter at the 9.4mm / 0.375" thickness, steps down, levels out, and ends up at 4.65mm for a few mm's of the remaining diameter.
Edit: measured about 14mm from the lug stud hole to the outside edge of the hub.
Here are some pics, if they will work:
Top view of AE95 hub:
https://lh3.googleusercontent.com/aehu5 ... 37-h709-noMR2 disc sitting (backwards) on AE95 hub. You can see how small the inside of the rotor is.
https://lh3.googleusercontent.com/JDHD4 ... m8=s709-no