What size and correct name on our rear ends?

The Swede

-89 TTA 7 sec car
Jul 13, 2001
Hello all!

Is the correct name on the rear end 9 bolt BW Australien?
Or do i mix it up with the TTA?

PS: I did a search here and 1664 threads came up.......!:eek:

That is the TTA rear end. The TR's are 8.5 inch 10 bolt. Not sure if they are corporate, dana, or saginaw. Someone else should have that answer.
Yes it is a Borg Warner 9 bolt 7.75", Also refered to as the Austrailan rear...The Buick rear is a Corporate 10 bolt 8.5".