One article pointed out that these were "heavy duty" but did not explain what that meant. The only thing I recall reading is that the driveshafts were "specially balanced" to handle the extra speed. I don't think they were bigger diameter than a big block driveshaft. The boot may have had extra adhesive to keep it secure at Max Wedge speeds, but that is something I heard but can't verify in a reference. I looked in a police car reference book to see if there was a special heavy duty cop car driveshaft but could not find one listed. I may have overlooked it if it is there. If so, it would seem a good candidate for the max wedge cars. Thanks, Gary H. W.A. Edison wrote: > > I'm putting one of my 64 Sport Furys together as an authentic Max Wedge > car, > at least as authentic as I can make it. I've found a ball and trunnion > driveline that looks to be new. What is the diameter of a MW original > driveshaft? The one in my 383 Sport Fury is 2 3/4" in diameter. Are they > the > same or did the MW come with a beefier driveline? Thanks/ Butch ---- 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! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.