Thread: Parking brake help?

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Have a '48 Buick with a SBC and turbo 350 trans, 10 bolt 7 5/8 '90 Camaro rear with 9.5 in. brakes. My problem : can't seem to get the park brake to hold. I have put all new brakes (shoes, wheel cylinders, hardware and new drums) and new brake cables. I removed the foot pedal assembly and cleaned and lubed it and it seems to work just fine. I tried hooking the front cable from the foot operated park brake directly to the rear cables, couldn't seem to get enough application, only made the rear brakes drag a little. Then I made a lever device to ad to the mechanical advantage and the brakes apply a little more but I have to have the cables so tight that there is some dragging of the brake shoes. Can't imagine what else I might do to make this thing work. Anyone have some ideas? Thanks, Topless.