Rear Differential replacement at 100,000 miles

My rear differential went out for a total replacement at a little over 100,000 miles. It started with a skipping while turning. Replaced the oil regularly and then when noise started for inspection and showed no chips or anything unusual. Inspection of the differential, gears were totally stripped. Asked Toyota and they indicated it was not normal, and no recalls. The only major thing replaced was the differential, but disappointed. Nothing on the internet or forums stating an issue with the limited slip (I think) differentials. Until a buddy driving his 2006 Tundra informed me his truck's differential went out at the exact miles! We both do not "abuse" our trucks with only light duty and towing a boat.
Just think it is too coincidental. Is this normal for a 1st series Tundra to have problems with the differential?

 

I have 145xxx on mine. No problems at all. 2003 here.

If limited slips are in the pumpkins you must use a limited slip oil.. if the wrong oil was used or put in by the tech wrong the wear would be disaster for the unit. I have seen not just Toyota with this problem its all of them, when the wrong oil is introduced..