Who has Dr. Diff 8 3/4 rear discs? Pt. 2

I run DoctorDiff's 11.7" rear disks on my Duster. They work great. My full system is a set of DoctorDiff 13" cobra style brakes up front, the 11.7's in the back, a 15/16" master cylinder (also DoctorDiff), and an adjustable proportioning valve from Summit (looks like a wilwood piece, but summit brand).

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