I'm about to tear down my diffs reading through the previous post I see that there are also gear wear issues....is this only happening to the small beveled gears? Or both, sun gear also? Would like to know this for the guys who are currently using the ofna beveled gears how is it holding up? I would purchase this kit if the problem is with the smaller gears only I would be hesitant to change it if both are the same material by putting a harder beveled gear would ruin the bigger sun gear. I would rather keep both stock gear and let it wear evenly. Please advise.