Fitted the replacement backing plates and new e-brake cables.

E-brake proper 6 clicks now… but not holding… hummm….

Decoded my VIN – turns our pre 72/12 (which is actually mid way through 73) VW changed the design of rear brake shoes. Guess what I have 73-79 shoes, the reason the e-brake is not holding is the lever is up tight against the hub and not engaging the pads fully on the drums… quick order to bus depot and we’ll see if that finally solves this mystery!.