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2015-23 Mustang Parts
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2015-2023 Mustang Manual Transmission & Parts

Improve the performance of your 2015-2023 S550 Mustang manual transmission with popular upgrades from LMR.com! Most manual Mustangs, GT, EcoBoost, V6, and Bullitt, run the factory MT82, while GT350 and GT350R use a different factory transmission, the Tremec TR-3160. Looking for more strength? Our Tremec T56 Magnum XL swap kits are available in versions for 2005-2017 and 2019-2023 Mustangs to match the correct bellhousing and input shaft. Not sure which transmission is under your Mustang? Our S550 drivetrain specialists can help you confirm before you order. Check out our clutch kits and components, and flywheels to complete your manual transmission upgrades! Shop our full line of drivetrain components for all of the needed parts for your 2015-2023 Mustang.

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2015-2023 Mustang S550 Manual Transmission & Parts

Count on LMR for your 2015-2023 Mustang transmission needs. We can help you get the job done with the right parts, knowledge, and expertise to do it right the first time. The transmission mount insert is a common upgrade for 2015-2023 Mustang manual transmissions to remove excess transmission movement, improving shift engagement. The factory mount is hollow, allowing too much flex, leading to missed shifts.

A popular upgrade to the S550 Mustang manual transmission is replacing the flimsy stock clutch fluid line with a sturdier stainless steel line. This upgrade improves pedal effort and control. These clutch lines flex less to provide more pedal and clutch feedback! Another common upgrade is to remove the factory MT82 and replace it with a stronger Magnum T56 transmission. These T56 transmissions have proven to handle high horsepower and torque on modified Mustangs!

Which factory transmission does your Mustang have? GT, EcoBoost, V6, and Bullitt models all use the factory MT82. GT350 and GT350R are the exception, they came from the factory with a Tremec TR-3160 instead. If you're swapping to a T56 Magnum XL, our kits come in two versions, 2005-2017 and 2019-2023, to match the correct bellhousing and input shaft for your Mustang.

Not sure which transmission your Mustang has, or how to bleed a hydraulic clutch line? See our What Manual Transmission Is In My Mustang? guide, or check 2015-2017 Mustang Fluid Capacity or 2018-2023 Mustang Fluid Capacity specs for your specific year before your next service.

Shop related: All 2015-2023 Mustang Drivetrain · Automatic Transmission · Clutch Kits & Components · Flywheels · Aluminum Driveshafts · Half Shafts · Gears & Differential