Quote:

What do you mean by "split the sleeve"?
I don't understand.



Well I have seen more than one 489 case split the crush sleeve right down the side when you shock them with weight,horsepower,and traction.
I have also rebuilt 9" rears that also split that little tiny sleeve
I went to a Dana before that happened to my 8 3/4(alot easier to sell before the look like yours)
If you stay with an 8 3/4 do yourself a favor and get a 742 unit
Gus


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60