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Whiteline Positive Shift Manual Transmission Mount Bushing Insert (11-23 Mustang, Excluding 20-22 GT500)

Item 100378
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      Video Review & Installation

      Hey, Stephanie with, and this is my quick breakdown of the Whiteline transmission mount bushing insert available for the MT-82 6-speed transmission that is found on all 2011 to '14 Mustang GTs.Whiteline is a performance suspension company whose number one goal is to activate more grip in your ride, thanks to products like sway bars, Watts link kits, and other suspension components. They also specialize in designing and producing cutting edge bushing technology, thanks to synthetic elastomer material. We've used a few of Whiteline's products in the past. In fact, if you'd like to see more detailed product breakdowns along with project cars, well, then you guys should know what to do by now. Click the link below and subscribe to our YouTube channel, if you haven't done so already.Now, if you have a manual Coyote, then chances are you've already run into some of the common issues, such as high RPM lockout or lockout during aggressive cornering. This is due to the stock transmission mount and soft rubber bushing, allowing for excess transmission movement when the car is being pushed hard or when you're really trying to bang gears.This bushing insert from Whiteline eliminates the excessive play by filling small voids, strengthening the mounting location, and eliminating the high RPM issues altogether. The bushing insert itself is made from Whiteline's signature synthetic elastomer which usually does a great job of reducing noise, vibration, and harshness. I say usually, because in the case of this bushing insert, you may notice a little bit more noise inside the cabin. In fact, now is a great time to head back to the product page if you aren't there already to see what some of the customers have to say about running this bushing insert in their own ride.As far as installation goes, the site calls for two hours on this one, but a number of our customers have stated that it only takes an hour or less. This is an installation that takes place under the car, so make sure you have your jack and jack stands ready, or a lift if you're lucky enough to have access to one.Of course, detailed install instructions are available on the product page, and you can always feel free to reach out to a Mustang expert should you have any questions. If you're looking to improve the shifting situation in your MT-82 equipped GT then be sure to check out the Whiteline bushing insert available here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Reduce Driveline Vibration and Deflection
      • Synthetic Rubber Construction
      • Perfect for Street or Strip Applications
      • Designed for Manual Transmissions
      • Fits 2011-2023 Mustangs


      Reduce Vibration. Whiteline's Positive Shift Kit also known as a Transmission Mount Bushing Insert fits neatly into the stock rubber mount to reduce driveline vibration and deflection when your banging through the gears.

      Quality Construction. This Whiteline Transmission Mount Insert is crafted from low compliance synthetic rubber which is much more durable than natural rubber to give you years of trouble free driving.

      Application. The Whiteline Positive Shift Kit (Transmission Mount Bushing Insert) is specifically designed for use on the 2011 to 2023 Mustangs equipped with a manual transmission.



      Whiteline KDT928

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Transmission Mount Bushing Insert

      Tech Specs


      Customer Reviews (218)

        Questions & Answers

        10 More Questions

        Will It Fit My Mustang

        • Boss 302 - 12, 13
        • Bullitt - 19, 20
        • EcoBoost - 15, 16, 17, 18, 19, 20, 21, 22, 23
        • GT - 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
        • GT350 - 15, 16, 17, 18, 19, 20
        • GT350R - 15, 16, 17, 18, 19, 20
        • GT500 - 11, 12, 13, 14
        • Mach 1 - 21, 22, 23
        • V6 - 11, 12, 13, 14, 15, 16, 17

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