I bought a torsen swap with non-abs axles and since I didn't find 1.8 axles with abs rings on them conveniently, I swapped my abs rings from the 1.6 to the 1.8.
Hopefully someone will find this useful.
Start with this:
Here is a shot comparing the axles:
Left to right - 1.6 axle with ring removed, 1.6 with ring on, 1.8 axle w/o abs.
To remove the rings, i used a flat head and a hammer to chisel them out, was pretty easy.
The 1.8 axles I had were slightly larger in diameter than the 1.6, so here's where it gets "tricky". I believe i bored my rings out to 72 mm with my lathe, I measured initially but then adjusted it to make it fit properly. Bore the whole ring out to the same inner diameter and it'll seat itself properly on the axle. Here are some photos.
untouched abs ring
started working on it...
Silly me, i forgot to take a picture of the final product, but it basically looks like above but with the same I.D. throughout.
Here is the 1.8 axle with the modified ring on it.
Again, the ring will seat onto the axle at the proper offset.
That's pretty much it. On one of them I took too much off and it slid on without much resistance so I added a touch of jb-weld. These things aren't bearing any loads and are just spinning with the axles so I didn't find it a big deal. It still fit snug.
LMK if you have any questions or whatnot but it was pretty straight forward. With the axles already off the car I probably spent 2 hours at a leisurely pace.