On my '63 Crown's auto prkng brake release, I noted that there were no clips securing the vacuum line to the vacuum diaphram, and this 40 year old hose fits loose enough to allow air passage. A new hose is on the to-get parts list. Can anyone confirm that clips were or were not used to secure this hose to the diaphram? Clay, for that issue with a non releasing parking brake, it sounds like the diaphram is stuck in the release position or the manual emergency release lever is being held in the release position. Eric Portland, Or. Though it isn't a huge problem ,the parking brake has never worked on my Crown Coupe. It plain doesn't do anything. The pedal won't even stay down when you press on it.