Re-splining C body axles

I think you need minimum of 28" from the outside of the flange to the neck down area to use this in an a body 8-3/4. I sent mine UPS to Moser on a Tuesday afternoon. Next morning they called me to confirm what brakes I was using. (10 x 2-1/2 in my case) mine still had good ol Timken bearings so when I had them back a couple days later I was ready to go. I'm not a fan of Green bearings.
Total price was slightly over a hundred bucks. When you put them side by side with the a body axles, there is a big difference in mass. The new splines may not be hardened but for my use they've been perfectly fine for the last 8 years or so. BTW, it added exactly 3/8" per side to the track width.
Call Mosers and talk to them if you're looking for a cheaper solution.