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ring and pinion

  1. Mustang EcoBoost Performance
    Hello, I'm looking to add a new ring and pinion to increase my take-off potential, but looking at the Ford Performance Ring And Pinion Gear 3.73 Set 8.8" IRS 2015-2021; Ford Performance Ring And Pinion Gear 3.73 Set 8.8" IRS 2015-2021 . it notes "*Will NOT fit 2015-2021 Mustangs originally...
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