The four cyl brakes are indeed lighter, and smaller. I sold a pair of discs to a local guy. He bought the 82 Concorde pair and I had an 75 4-cyl Gremmy sitting next to them. I moved the 4 cyl, then the 6. Big diff.....Russ __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo