Physically with a tape measure measure the height of the rear tires and let us know.. All conveters except lock up slip some . best case is about 3%. Some of the street converters and race converters being sold out there slip as much as 10% which could be as much as 330rpm in your case. lupos Dynamic are almost as good as stock. Don Author of Return to Deutschland (True Adventure) Old Reliable (Mopar) http://stores.ebay.ca/Don-Dulmage-Enterprises http://seniordragster.bravehost.com/index.html [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. This email was sent to: arc.6265@xxxxxxxxxxxxxx bSONJP. Or send an email to: 1962to1965mopars-unsubscribe@