Courtesy of s10cyncrvr
I've been thinking about going the 9" route but worry about adapting the C5/6 brakes. I guess it wouldn't be to difficult to adapt. I just have no idea which housing ends would be best.
That's cool but the 8.5" is enough for me and cheaper too. I just gotta get working on it. Since I did the Zex and the cover I haven't been in too much of a rush.

Item #8006
SMALL-GM ENDS,SEAL STYLE,FOR 3.150" BEARING (PAIR)
These housing ends are CNC machined from alloy billet steel. They are for street use only and have OEM style inner-axle seals for oil control. Two inches wide with a 3.150" diameter axle bearing bore . The bolt pattern is 3.125" center-to-center across the top, 2.6875" center-to-center across the bottom, and 2.4375" center-to-center vertically. The bolt holes are 3/8" diameter. Designed to use a Ford style axle bearing with small GM drum brakes require bearing retainer plates (part no. 8026). The drum-brake-backing-plate center hole will need to be enlarged to fit over the 3.150" diameter bearing during assembly. Kit contains a pair of housing ends.
From Cris Alston Chassisworks