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38 coupe · 03-11-2012, 10:20 PM

rotorwrench - you are correct. I was not trying to be argumentative, I was just pointing out that there was a top loaded transmission that had overdrive.

In order to maintain the low end grunt with a 3.00 rear axle you can install a heavy three transmission. These have a much wider gap first to second and second to third. The 3.71 first gear ratio of the heavy three combined with the 3.00 axle ratio restores first gear to where it is with a light three and the 3.92 rear axle.

03-11-2012, 10:20 PM	#10
38 coupe Senior Member Join Date: May 2010 Location: South Texas Posts: 2,040	Re: transmission help rotorwrench - you are correct. I was not trying to be argumentative, I was just pointing out that there was a top loaded transmission that had overdrive. In order to maintain the low end grunt with a 3.00 rear axle you can install a heavy three transmission. These have a much wider gap first to second and second to third. The 3.71 first gear ratio of the heavy three combined with the 3.00 axle ratio restores first gear to where it is with a light three and the 3.92 rear axle.