TREMEC M8112 Gear Set Shaft Borg 3.35 T-5

( Brand: Tremec ), ( Manufacturer Part Number: M8112 ), ( Type: Input Shaft ), ( Vintage Part: Yes )

Review TREMEC T5 3.35 Ratio Gear Set World Class No Input Shaft Borg T-5 fits MUSTANG 1999–2004

The TREMEC M8112 T5 3.35 gear set is an ideal upgrade for the 99-04 Ford Mustang drivers looking to enhance their vehicle's performance. This gear set is specifically designed for the TREMEC T-5 5-speed transmission, ensuring a perfect fit and seamless integration with your Mustang.

The 3.35 gear ratio of this set offers improved acceleration, making your Mustang more responsive and agile. The gears themselves are meticulously crafted from high-strength steel, providing exceptional durability and the ability to handle increased power levels. With each gear tooth designed for optimal engagement and smooth shifting, you can expect a noticeable improvement in the overall driving experience.

1. First gear: The first gear is the most critical component in any manual transmission, as it sets the tone for the entire powertrain. The TREMEC M8112 T5 3.35 gear set comes with a precisely engineered first gear, ensuring reliable engagement and efficient power transfer.

2. Second through fifth gears: The second through fifth gears are designed to work in harmony with the first gear, providing a balanced and efficient power delivery throughout the RPM range. Each gear is manufactured to the highest standards, ensuring consistent shifting and durability.

3. Shafts: The gear set also includes various shafts that connect the gears and facilitate the power transfer between them. These shafts are made from strong materials and are engineered to minimize deflection and wear, ensuring a long-lasting and reliable transmission.

The Borg Warner T-5 transmission is a popular choice among Mustang enthusiasts due to its robust design and ability to handle high power levels. By upgrading to the TREMEC M8112 T5 3.35 gear set, you can elevate your Mustang's performance, making it more responsive, agile, and enjoyable to drive.

In summary, the TREMEC M8112 T5 3.35 gear set is a top-tier upgrade for the 99-04 Ford Mustang, offering improved acceleration, durability, and overall driving experience. If you're looking to take your Mustang to the next level, this gear set is an excellent investment.

The Tremec M8112 T5 3.35 gear set is a popular choice for Mustang enthusiasts looking to upgrade their transmission for better performance. Here are some pros and cons to consider before making a purchase:

1. Improved Performance: A 3.35 gear set is ideal for Mustang applications as it provides better acceleration and power delivery, especially during takeoff and mid-range acceleration.

2. Durability: Tremec transmissions are known for their robustness and durability, making them a popular choice among Mustang owners.

3. Availability: The T5 gearset is widely available from various aftermarket suppliers, ensuring easy access and a wide range of options.

4. Versatility: The T5 transmission is compatible with various engine sizes and power levels, making it a versatile option for Mustang owners.

5. Better Shifting: The T5 transmission offers smoother and quicker shifts compared to the stock T3 transmission, resulting in a more enjoyable driving experience.

1. Cost: The T5 gearset can be an expensive upgrade, especially when considering the additional costs of labor and other related components.

2. Complexity: Installing a T5 gearset requires a fair amount of technical expertise and experience, making it a more challenging DIY project.

3. Compatibility: Although the T5 transmission is compatible with various Mustang applications, it's essential to ensure that all necessary components are compatible before making a purchase.

4. Noise Level: Some Mustang owners have reported an increase in noise levels after installing a T5 gearset, which can be a concern for those looking for a quieter driving experience.

The Tremec M8112 T5 3.35 gear set offers significant performance upgrades for Mustang owners looking to enhance their driving experience. However, it comes with some drawbacks, including the cost, complexity, and potential noise level increase. Ultimately, the decision to purchase a T5 gearset depends on individual preferences, driving style, and budget. If you're willing to invest in a high-performance transmission and have the necessary expertise to install it, then the T5 gearset is an excellent option. However, if you're looking for a more budget-friendly or low-maintenance solution, you may want to consider other options.

Details:

This came from 04 T5 world class V6 transmission. This is an electronic speedometer transmission. So the boss is there for mechanical speed gear but theres no whole drilled retainer clip. This is a 3.35 gear set like all the early 5.0 transmissions.

It has all the bearings thrust roller world class synchronizes gears are in perfect condition. This includes all the internal rotating components except input shaft. The only reason this transmission was removed because it had some damage to the input shaft which caused front seal leak. Sold as is for Parts rebuild or modification.

Everything looks immaculate.

part #: m8112 prices

• $89.95-$898.45

specifications manutransmission:

• for models: Mustang
• for years: 1999-2004
• brand: Tremec
• mpn: M8112
• type: Input Shaft
• vintage part: Yes

returns manutransmission:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

general manutransmission:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts

payments manutransmission:

• wallet: Apple-pay
• credit card: Mastercard
• other

offer manutransmission:

• quantity: 1
• options: Ship-to-home
• sold: 0
• started: October 10, 2025
• availability: In Stock

seller manutransmission:

• rating: 99.2%
• # reviews: 1012
• city: Billings, Missouri

shipping manutransmission:

• transit: 4-7 Days
• type: Fixed
• service: UPS Ground
• cost: $40.00
• class: Standard
• carrier: UPS

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