I took it out of an 8.8 (fits a Fox), it's 31 spline, 4 lug with the C-clip groove cut in, bearing surface shaft dia is 1.40". The cup "middle" of the tire side of the axle flange has a "M" overtop of "69" (lol, ya Mike, I know) cast into it, beside that is an elongated "S" with a line goin thru it. Neither Moser or Strange/Baer will own up 2 them. Any idea?

 

Got it. FMS #M4235 B 29.16" Who wudda thunk ?