In a message dated 20/02/03 07:28:41 GMT Standard Time, gfreynpo@xxxxxxxxxxxxxx writes: << I have a 61 Crown that has a loud "HISSING" only when I press the brakes. I think something in the vacuum booster is leaking. Does anyone know of a good company that repairs power brake units? How long does it take? Is the vacuum unit the same for a 61 Crown, 62 Chrysler 300, and 62 Chrysler Newport? Cost? >> Gary, I recently had my '61 booster rebuilt by Karp's. They are located in CA and the website is www.resleeve.com. Theyt charge $200 I am very pleased with the result and it only took a few days for them to complete the job. I think you will find that Imperial brake boosters changed in '62 with the master cylinder bolted on the front of the booster instead of being separately located underneath. The chances are other Chrysler products changed too. Best wishes, Tony Vickers