Did you read this part of that link ? WRONG GEOMETRY TWO: (Or, what NOT to do if you own a Chrysler!)*As if the above (WRONG GEOMETRY ONE) isn't enough, my old friend of 40 years who actually knows better (as do Comp Cams), plays on words with web caption humor to get his point across of how wonderful he thinks "REAL" rockers should be installed. (Thanks, David.)**^