8 3/4 suregrip question

n8ling said

Heading out to check out a used 8 3/4 suregrip, I've got the clutch/cone thing down, wondering if there is size diff between 8 1/4 9 1/4 diameter or bolt pattern I think it might just be unit on its own no case gears etc.? Is there #'s I should know anything along those lines???

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Look at the last 3 digits of the casting number, 741, 742, 489 = 8-3/4. A 9-1/4 is a Dana, a completely different animal. It will not have a removable center section. It will have a removable cover on the back side, I'm thinking 12 bolts. I do believe the 8 1/4 will also not have a removable center section though not 100% certain.

Russ