Description
Tremec Magnum-F TUET17638 Transmission Overview
The Tremec Magnum-F Manual Transmission TUET17638 is part of the Tremec Magnum-F Manual Transmissions product line and is designed as a modern performance replacement for aging T-56 manual transmissions in compatible fourth-generation GM F-body applications.
This model is listed under Manufacturer’s Part Number TUET17638, Summit Racing Part Number REM-TUET17638, and UPC 00887753806772. It is sold individually and includes the shifter, but it does not include the bellhousing or yoke.
The transmission uses a 1.125-inch input shaft diameter, 26-spline input shaft, and 31-spline output shaft. It features a 6-speed layout with a 2.97 first gear, 0.74 fifth gear, and 0.50 sixth gear, giving builders strong low-gear performance and deep double-overdrive highway capability.
Tremec developed the Magnum-F to address shifter-location needs for 1998–2002 GM F-body Camaro and Firebird applications while also supporting other builds that require a similar shifter position. It fills the gap between the original Magnum shifter location and the longer Magnum XL layout.
For builders who need a strong, brand-new, modern manual transmission with crisp shift quality, 700 lb-ft torque capacity, and F-body-friendly packaging, the Tremec TUET17638 Magnum-F transmission is a serious upgrade option.
Vehicle Fitment and Common Applications
The Tremec Magnum-F TUET17638 is designed primarily to replace T-56 transmissions in 1998–2002 GM F-body cars, including compatible Chevrolet Camaro and Pontiac Firebird applications.
The Magnum-F platform can also support other builds that use a similar shifter position. The supplied application notes mention potential use in third-generation F-bodies, LT1-powered fourth-generation F-bodies, LS-swapped late-model vehicles, and sport compact applications such as A80 Supras and FD RX-7s when the shifter position and installation package are correct.
Fitment should be verified by checking the vehicle platform, bellhousing selection, clutch setup, input shaft size, input spline count, output spline count, crossmember position, driveshaft length, yoke requirements, shifter position, tunnel clearance, speedometer pickup needs, hydraulic clutch setup, and intended power level.
Because this transmission does not include a bellhousing and does not include a yoke, buyers should plan the full installation package before ordering.
The Tremec Magnum-F 6-speed transmission is commonly selected for high-performance street builds, LS swaps, road-racing projects, pro-touring vehicles, track-focused F-bodies, and custom builds where the standard Magnum shifter may sit too far forward and the Magnum XL may sit too far rearward.
Modern T-56 Replacement Value
The Tremec Magnum-F Manual Transmission was developed to provide fourth-generation Camaro and Firebird owners with a stronger, newer, and more available alternative to older T-56 transmissions.
Original T-56 units can be difficult to find in excellent condition. Used transmissions may have worn synchronizers, gear wear, bearing noise, damaged shift forks, high mileage, weak shifter feel, or unknown racing history. A new Tremec Magnum-F transmission gives buyers a cleaner replacement foundation using modern Tremec performance architecture.
The Magnum-F uses the durable TR-6060/Magnum architecture, bringing improved strength, better synchronizer design, increased gear face width, enhanced case webbing, and cooler circuit provisions compared with many older transmission platforms.
For builders who want a more confident replacement than a used T-56, the TUET17638 Magnum-F offers modern construction, strong torque capacity, and a shifter location designed around F-body and swap fitment needs.
Close-Ratio 6-Speed Performance
The Tremec Magnum-F TUET17638 is listed as a close-ratio version for high-performance street and road-racing use.
The gear ratios are:
| Gear | Ratio |
|---|---|
| First Gear | 2.97:1 |
| Second Gear | 2.10:1 |
| Third Gear | 1.46:1 |
| Fourth Gear | 1.00:1 |
| Fifth Gear | 0.74:1 |
| Sixth Gear | 0.50:1 |
The 2.97 first gear ratio provides strong low-speed acceleration in compatible performance builds, while 0.74 fifth gear and 0.50 sixth gear provide deep double-overdrive capability for lower cruising RPM.
This ratio set is especially useful for high-performance street cars, road-racing builds, and pro-touring vehicles that need strong acceleration through the lower gears while still maintaining practical highway drivability.
The 700 lb-ft torque capacity adds confidence for serious builds when the full drivetrain, clutch, driveshaft, differential, mounts, and supporting systems are properly matched.
Shifter Position and Driving Feel
One of the strongest advantages of the Tremec Magnum-F is its shifter-position strategy. Tremec designed the Magnum-F to fill a long-standing gap between the original Magnum and Magnum XL transmission layouts.
For some builds, the standard Magnum shifter location may sit too far forward. For others, the extended-length Magnum XL may place the shifter too far rearward. The Magnum-F’s in-between shifter position can be the better fit for many F-body and custom swap applications.
The transmission includes an upgraded isolator-style shifter, similar in concept to the Magnum XL shifter design. This helps reduce in-cabin noise and vibration while preserving the precise, communicative shift feel that Magnum transmissions are known for.
The supplied notes also highlight short, low-effort shift throws with crisp engagement, making the TUET17638 Magnum-F suitable for performance drivers who want a strong and refined manual transmission feel.
Strength, Synchronizers, and Case Design
The Tremec Magnum-F TUET17638 benefits from durable internal componentry found in modern high-performance OEM muscle and sports car transmission architecture.
Compared with older T-56 transmissions, the Magnum-F offers increased face-width on all gears, a robust combination of double and triple cone synchronizers, enhanced webbing in the main case, and provisions for a cooler circuit.
The case is made from aluminum, helping keep the transmission reasonably light while maintaining strength. The supplied product notes list the Magnum-F at approximately 135 lb dry.
The modern synchronizer design helps improve shift quality, while the stronger gear and case architecture support higher output applications. These details are especially valuable for road-racing, pro-touring, high-power street cars, and swap vehicles where shift consistency and drivetrain strength matter.
Included and Not Included Components
The Tremec Magnum-F Manual Transmission TUET17638 is sold individually and includes the shifter.
The bellhousing is not included, and the yoke is not included. Buyers should select the correct bellhousing, clutch, flywheel, hydraulic release setup, pilot bearing, transmission mount, driveshaft/yoke combination, speedometer connection, and supporting hardware based on the vehicle application.
This transmission is listed as not remanufactured and is made from 100 percent brand-new OEM-quality content.
Because the Magnum-F may be used across several F-body and swap platforms, ordering the correct supporting parts is essential for proper installation.
| Component | Included |
| Transmission Assembly | Yes |
| Shifter | Yes |
| Bellhousing | No |
| Yoke | No |
Key Benefits for Performance Builders
The Tremec Magnum-F TUET17638 gives performance builders a strong modern 6-speed manual transmission platform for compatible F-body, LS-swap, pro-touring, and road-racing builds.
The first major benefit is torque capacity. With a listed 700 lb-ft torque rating, this transmission is suitable for powerful street and track combinations when paired with the correct clutch and drivetrain components.
The second benefit is fitment flexibility. The Magnum-F shifter location, multiple shifter-location capability, and dual speedometer pickups help support a wide range of performance applications.
The third benefit is shift quality. The included isolator-style shifter, short shift throws, and modern synchronizer design deliver crisp, precise engagement with reduced in-cabin noise and vibration.
The fourth benefit is modern construction. The TR-6060/Magnum-based architecture, aluminum case, increased gear face width, cooler circuit provisions, and double/triple cone synchronizers provide a serious upgrade path over aging T-56 units.
Who This Transmission Is Best For
The Tremec Magnum-F Manual Transmission TUET17638 is best for owners, builders, and shops working on compatible 1998–2002 GM F-body Camaro and Firebird vehicles that need a strong modern replacement for a T-56 manual transmission.
It is also suitable for third-generation F-body builds, LT1-powered fourth-generation F-bodies, LS-swapped vehicles, pro-touring cars, road-racing projects, and custom applications where the Magnum-F shifter location works correctly.
This product is a strong choice for buyers who need a 6-speed manual transmission, 700 lb-ft torque capacity, close-ratio gearing, deep double overdrive, 26-spline input, 31-spline output, aluminum case, and included shifter.
It is not intended for buyers who need a complete install kit with bellhousing, yoke, clutch, driveshaft, crossmember, mount, or hydraulic components included. Those parts must be selected separately based on the vehicle.
Technical Details and Included Specifications
The Tremec Magnum-F Manual Transmission TUET17638 is a brand-new 6-speed manual transmission with close-ratio gearing, deep double overdrive, strong torque capacity, and an included shifter.
| Specification | Details |
| Product Type | Manual transmission |
| Brand | Tremec |
| Product Line | Tremec Magnum-F Manual Transmissions |
| Manufacturer Part Number | TUET17638 |
| Summit Racing Part Number | REM-TUET17638 |
| UPC | 00887753806772 |
| Number of Gears | 6 |
| Torque Capacity | 700 lb-ft |
| Input Shaft Diameter | 1.125 in. |
| Input Spline Quantity | 26 |
| Output Shaft Spline Quantity | 31 |
| Bellhousing Included | No |
| Yoke Included | No |
| Shifter Included | Yes |
| First Gear Ratio | 2.97:1 |
| Second Gear Ratio | 2.10:1 |
| Third Gear Ratio | 1.46:1 |
| Fourth Gear Ratio | 1.00:1 |
| Fifth Gear Ratio | 0.74:1 |
| Sixth Gear Ratio | 0.50:1 |
| Case Material | Aluminum |
| Approximate Dry Weight | 135 lb |
| Architecture | TR-6060 / Magnum-based design |
| Synchronizers | Double and triple cone synchronizer design |
| Cooler Circuit Provisions | Yes |
| Remanufactured | No |
| Quantity | Sold individually |
| Intended Use | High-performance street, road racing, pro-touring, F-body replacement, LS swap applications |
Fitment Support and Ordering Notes
Before ordering the Tremec Magnum-F TUET17638, buyers should confirm vehicle fitment and supporting components. Important details include vehicle platform, bellhousing requirements, clutch selection, flywheel compatibility, input shaft diameter, input spline count, output spline count, driveshaft length, yoke selection, shifter position, transmission mount, crossmember, tunnel clearance, speedometer pickup requirements, hydraulic clutch system, and intended torque level.
This transmission includes the shifter, but it does not include the bellhousing or yoke. Buyers should also confirm whether additional installation parts are needed, including clutch kit, pilot bearing, flywheel, hydraulic release bearing, transmission mount, crossmember, driveshaft, yoke, speedometer wiring, reverse-light wiring, fluid, and hardware.
Customers can also compare this product with other Tremec Magnum-F transmissions, Tremec 6-speed manual transmissions, F-body T-56 replacement transmissions, compatible bellhousings, clutch kits, flywheels, yokes, driveshaft components, shifters, mounts, and installation hardware when planning a complete build.
Frequently Asked Questions
What is the Tremec Magnum-F TUET17638 designed for?
The Tremec Magnum-F TUET17638 is designed as a high-performance 6-speed manual transmission for compatible 1998–2002 GM F-body Camaro and Firebird applications, T-56 replacement projects, LS swaps, pro-touring builds, and road-racing vehicles.
Does this transmission replace a T-56?
Yes. The Magnum-F was designed to replace T-56 transmissions in 1998–2002 GM F-body cars while offering modern Tremec Magnum architecture, improved strength, updated synchronizers, and a more suitable shifter location for many applications.
What is the torque capacity?
The Tremec Magnum-F TUET17638 is rated for 700 lb-ft of torque, making it suitable for serious performance builds when paired with the correct clutch, drivetrain, and supporting components.
Does this transmission include a shifter?
Yes. The shifter is included. Tremec upgraded the shifter to an isolator-style unit designed to reduce in-cabin noise and vibration while maintaining precise shift feel.
Does this transmission include a bellhousing or yoke?
No. The bellhousing is not included, and the yoke is not included. Buyers must select compatible installation components based on the vehicle and drivetrain setup.
What are the gear ratios?
The ratios are 2.97 first, 2.10 second, 1.46 third, 1.00 fourth, 0.74 fifth, and 0.50 sixth. This is a close-ratio 6-speed setup with deep double overdrive.
Is this transmission remanufactured?
No. The supplied specification states Remanufactured: No. Tremec Magnum-F transmissions are made from brand-new OEM-quality content.
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