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    1. #6
      Join Date
      Apr 2001
      Location
      The City of Fountains
      Posts
      16,118
      Country Flag: United States
      Quote Originally Posted by 67rally View Post
      FWIW, I have a GTO T56 (2.97 1st) with 4.10's in my '67 and it's a blast to drive.
      I didn't mean to imply that 4.10s wouldn't work. You just have to make sure that your front and rear u-joint operating angles are dialed in very well to keep driveline vibrations at bay. With a numerically higher rear gear the driveshaft speed increases, which means the operating angles should be kept below 3 degrees, or even less.



      Andrew
      1970 GTO Version 3.0
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