Well- I did some measuring on the 17" Rallys; looks like the largest front rotor I can use is the 12.19" with the 6-piston caliper.

So the big question is, what size rear rotor to use? Wilwood offers an 11" and 12.19" in the 2.36 offset I need with the green bearing axle I have from Dr. Diff Again, this is a 3200# somewhat nose heavy E-body.

The front rotors come slotted and drilled; do I necessarily need the same in the rear, or can I go with solid rotors?