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2011 mustang gt gears

  1. 2011 - 2014 Mustang GT Tech
    Hey there, I have a manual 2011 mustang gt with 3.31's currently installed and 6000 miles on the car. I recently purchased ford racing 3.73 gears which included the pinion, pinion nut, gear, shims, and crush ring. Do I need anything else like bearings or seals. Also I plan on putting 75W140...