So I just bought an 06 bruin 350 4×4 and I’m haveing rear brake problems. Put new shoes on , new parking brake cable because it was pretty wore. Pumped the pedal until it had good grab so I went for a test ride hit the brakes and they went to the floor. No brake! So I adjusted cables the hand lever and foot had good grab , took it out again and lost them again! What’s left to do, any suggestions?