TREMEC TDET18576 TR-4050 5-Speed Transmission Ford 2WD

The TREMEC TDET18576 TR-4050 5-Speed Manual Transmission is a heavy-duty manual transmission engineered specifically for Ford 2WD truck and utility vehicle applications. Designed to handle demanding towing, hauling, off-road, and high-performance driving conditions, the TR-4050 combines modern shifting technology with the strength and durability required for today’s powerful engines.

Built with a rigid die-cast aluminum case and high-strength internal components, the TR-4050 offers a torque capacity of up to 600 lb-ft while remaining lighter than many traditional cast-iron truck transmissions. Advanced carbon-lined synchronizers provide smooth, precise gear engagement, eliminating the difficult shifting commonly associated with older heavy-duty manual gearboxes.

The TDET18576 version is specifically calibrated for Ford rear-wheel-drive applications and features a deep 5.81:1 first gear that delivers exceptional low-speed pulling power. Whether towing heavy trailers, climbing steep grades, or hauling large loads, the ultra-low first gear provides excellent vehicle control and reduced clutch wear. The 0.77:1 overdrive fifth gear lowers engine RPM during highway cruising, improving fuel economy, reducing engine noise, and extending drivetrain life.

Designed with constant-mesh helical gears, tapered roller bearings, and a robust synchronizer assembly, the TR-4050 offers outstanding reliability under continuous heavy loads. The transmission also includes a standard 6-bolt PTO provision, making it suitable for commercial applications requiring hydraulic pumps or auxiliary equipment.

Its compact design, multiple mounting provisions, and modern engineering make the TR-4050 an ideal replacement or upgrade for classic Ford trucks, custom builds, restomods, and work vehicles that demand both durability and driving comfort.

Features

• Genuine TREMEC TR-4050 5-Speed Manual Transmission
• Part Number: TDET18576
• Designed for Ford 2WD applications
• Heavy-duty truck transmission
• Torque capacity up to 600 lb-ft
• Lightweight die-cast aluminum housing
• Fully synchronized forward gears
• Carbon-lined synchronizers for smooth, precise shifting
• Constant-mesh helical gear design
• Heavy-duty tapered roller bearings
• Single overdrive gear
• Multiple shifter mounting positions
• Standard right-side 6-bolt PTO provision
• Excellent for towing, hauling, commercial, and performance applications

Gear Ratios

• 1st: 5.81:1
• 2nd: 2.94:1
• 3rd: 1.61:1
• 4th: 1.00:1
• 5th: 0.77:1 Overdrive
• Reverse: 5.69:1

Specifications

• Brand: TREMEC
• Model: TR-4050
• Part Number: TDET18576
• Transmission Type: 5-Speed Manual
• Application: Ford 2WD
• Torque Capacity: 600 lb-ft
• Forward Gears: 5
• Overdrive: Single
• Input Shaft: 10-Spline
• Case Material: Die-Cast Aluminum
• Fully Synchronized Forward Gears
• Carbon Friction Synchronizers
• Heavy-Duty Tapered Roller Bearings
• Constant-Mesh Helical Gears
• Standard 6-Bolt PTO Mount
• Approximate Dry Weight: 170 lbs
• Fluid Capacity: Approximately 3.7 Quarts
• Maximum Rated Engine Speed: 5,500 RPM

Recommended Applications

The TREMEC TDET18576 is compatible with a wide variety of Ford rear-wheel-drive truck applications when used with the appropriate supporting components, including:

• Ford F-100
• Ford F-150
• Ford F-250
• Ford F-350
• Ford Bronco (2WD conversions)
• Ford utility trucks
• Classic Ford pickups
• Restomod truck projects
• Custom street trucks
• Performance truck builds

Vehicle compatibility depends on the proper bellhousing, clutch assembly, crossmember, transmission mount, driveshaft, and engine combination.

Installation Requirements

Depending on your vehicle, installation may require:

• Ford-compatible bellhousing
• Flywheel
• Clutch kit
• Pilot bearing or pilot bushing
• Hydraulic clutch release system
• Transmission mount
• Crossmember
• Driveshaft modification
• Output flange or slip yoke
• Reverse light wiring
• Transmission fluid
• Installation hardware

Professional installation is recommended to ensure proper operation and long-term reliability.

Package Includes

• Genuine TREMEC TDET18576 TR-4050 Transmission
• Factory Shifter Assembly
• Installation Documentation

Additional installation components are sold separately unless specifically stated.

Warranty

This transmission is backed by a 3-Year Limited Warranty, covering manufacturing defects under normal use when properly installed and maintained.