Update. I had time to get this together. And compare to the one aj sells.
Plus on this one over aj.
1) case looks better
2) snap ring that holds everything together is cut Deeper and will not fly out have seen this on other diff
3) more room to add shims to get back lash correct and preload for carrier bearings
Threads are cut better for fill and drain plugs
dislike about tba can not use performance development brace but TBA sent me one of theirs.
over all you can set this one up and not have to fight with it. They give all shims and seals needed if you buy just a case. I put a wave track in mine
View attachment 104094
View attachment 104095
View attachment 104096
View attachment 104097
View attachment 104098