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  1. K

    Will upgrading to 4.10 gears render 6th gear useless?

    Yes I plan to upgrade wheels and tires in the next year but also looking to better towing capacity. 3.21 gears suck for towing...
  2. K

    Will upgrading to 4.10 gears render 6th gear useless?

    I have a 2016 jku with 6 speed manual and 3.21 gears.. Will upgrading to 4.10 gears cause me lose or render 6th gear useless?