Chad, I've been through the same brake booster experience as you. Replacing a booster once is bad enough. Having to repeat the process because of low-quality replacements is infuriating. My '71 Imperial was on its third booster in so many weeks before I gave up on supply houses. I turned to the yellow pages to find a local rebuilder. One rebuilder said the most boosters from the chain stores are remanufactured by factories outside of the county. According to him, most of those factories don't replace the entire booster diaphram as they should, but rather patch holes and cracks in the old diaphram. I forget how much it was to have the booster rebuilt. It was under $100 for sure. Regardless of cost, having the booster WORK without fail thereafter was priceless. So, check your local phone book. If there's no one there, try one of the rebuilders who advertise in the hobby press. Good Luck! Dave At 06:50 AM 1/23/02 -0800, you wrote: >Well, I replaced my booster with the rebuilt unit that >I bought from Autozone and started the car up and no >change. I still hear hissing and have a rock hard >pedal. I think I got a bad booster from Autozone. >When I press on the brakes the car's idle gets rough >and when I unplug the booster it sounds great. I >think I'll go to Napa even though it is more >expensive. > >Chad >1973 Imp >1966 Galaxie > >__________________________________________________ >Do You Yahoo!? >Send FREE video emails in Yahoo! Mail! >http://promo.yahoo.com/videomail/ > >