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

Looking at your pics I thought I’d compare with our Australian version of the Dart (VF & VG Chrysler Valiant Hardtop) at the Handbrake lever end. This may help as I can see its assembled differently from yours, I hope it helps you out.

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Interesting! Your arm is angles the other way! I am not sure mine can turn that way because of the handle. I'll look at that.