Ring gear thickness has nothing to do with it. <img src="/forums/images/graemlins/pfft.gif" alt="" />

Most of the strength advantages are related to the pinion.

- Its got the extra pinion bearing support (similar to a GM 14-bolt)
- Overall beef of the pinion (bigger, thicker)
- Greater pinion offset. This changes the tooth angle and increases the tooth contact area (spreads the load over more teeth at one time). It makes it work a little bit more like a "worm" gear that most other differentials.

The disadvantage of the greater pinion offset is a lower pinion (driveshaft angle and ground clearance), however if its the reverse-cut, high-pinion version in the Pirate thread, then it works just the opposite and gives you a higher pinion and driveshaft than other high-pinion diffs do.

I don't know why they said the ring gear thickness has anything to do with it. If that were the case, then lower gears (numerically higher), which natrualy have a thicker ring gear than higher gears, would be seemingly stronger, and we know they're not...