Counterweights are often used in convertibles, even today, to arrest vibration that can occur at certain frequencies as a result of the combined various motions of a running, moving car. It's kind of like tuning a guitar string by adding tension to it at the ends (or changing its pitch by pressing on it somewhere in the middle), and it's made necessary by the reduced rigidity of any vehicle missing a fixed roof structure. -- Chris in LA 67 Crown 78 NYB Salon On 3/13/05 7:25 PM, Cebuisle2@xxxxxxx (Cebuisle2@xxxxxxx) wrote: > Ok-here's another question- > > I pulled my 65 convert out of its prison today for the first time in eight > years. Crawled around under it to see what the" termites "had done to it and > saw those heavy steel weights bolted at the rear of the car under the trunk. I > remember my 66 had these also-and rust had caused one to partially come loose, > hanging by one bolt. I removed it. > > Did just the convertibles have these weights? Or also the coupes? They seem > like a poor solution to a weight or balance problem-or were they intended for > some other reason? I'm guessing each of these things weighs thirty pounds or > so-sure doesn't help the gas mileage or the longevity of the rear tires- Any > thoughts on why Ma Mopar found it necessary to install them? Kind of like > carrying a couple of cement blocks around in your trunk in the winter for > traction (up North, y'all) > > Ted ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm