aggie91- That kit looks great and it's the most economical solution for 13" brakes front AND rear. All the other kits out there run 13" front and 12" rear or smaller. Then you get in to the high-end stuff like Wilwood, and Baer.
The only catch to that kit is the rear axle flange needs mods for the rotor to work. There was a forum member in 73-87 that tried to install it and had to send it back. Let me see if I can find the thread.
edit-Found it
- LINK