Ok gents, here's a 10 bolt that I rebuilt in December 2016, 45k miles ago. Serviced it today (not the first oil swap its had).
Gears are Motive gear 4.10 with an Eaton Trutrac. No regrets on either purchase.
The truck drives fine. The rear end has a minor "hooooooooo" sound from 50-60 but...