Hyper 7 Brushless conversion

[brushlessboy16]

Here are a few pics of the dead gear and the new one.

The new gear is from a Cen Genesis, it had a different output then standard 1/8th scale diffs so the bearing race was pressed out by mike(can see it in the picture.. Going to have to take the bearing race out of the old spur and fuse it to the new, most likely with 2 part epoxy or Jb weld.
That little output doesnt see that much flex or stress....does it?