I dunno.Kind of looks like a Chrysler 8.75" rear end. Maybe a 742 pattern?
Your right. Definately a 9". The pinion is different from a 8.75"I dunno.
From what I can see of the housing it seems to be a 9".
But, as mentioned, I can't get a good look because of the driveshaft and I also can't see the bearing ends because of the shocks and the dark photo.