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diff swap

  1. General Challenger Discussion
    Hi all, I have a 2010 Challenger, was an SE but ow has a 5.7L with 6.1L heads and cam, nag1, and Getrag 3.91 diff. All BMR and coilovers. I should have done a little more math homework before we went with the 3.91 gearing. It's a kick in the ass off the line but freeway and upper speeds clock...