Interesting, found one article that said that the 8.25" with 29 spline axles is comparable to a Dana 44. No idea where that puts it in the hierarchy though.
And the Dana 44 has the same axle spline count and the clutch type Dana 44uses he same internals as the 8 3/4” Dana clutch type. Minus the thrust button holes in the spider gear cross shafts. But you can drill them. Done it a few times.
