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  1. jc01

    What gears are best?

    I put 3.73's in my '99. Went to 4.10 when I bought the '01. The 3.73 gears were OK, but they weren't a big change compared to stock. The 4.10's make a big difference in acceleration and driveability doesn't suffer. Jeff
  2. jc01

    Need to know if transmission has to be removed to perform driveshaft swap.

    The '99 and '01 Cobra's have a vibration problem that I just explained in this thread. http://forums.stangnet.com/showthread.php?t=671390 In short, Ford fixed the problem by using driveshaft imbalance to offset pinion flange runnout. If you put in a well-balanced drive shaft, you could...
  3. jc01

    99 Cobra - Bad Vibration at highway speeds! HELP!

    I own a 2001 Cobra and previously owned a '99. Actually I think I was the first owner to post a message about the vibration and get the ball rolling toward Ford's finally recognizing the problem. You might be too late, but in '99 Ford issued a TSB where they replaced the transmission, driveshaft...
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