TREMEC TR-4050 5-Speed Conversion Kit for 1966–1977 Ford Bronco

Transform your classic SUV with the ultimate 1966–1977 Ford Bronco transmission upgrade. The TREMEC TR-4050 5-speed conversion kit from Silver Sport Transmissions is purpose-built for Early Broncos, delivering modern performance, durability, and smooth drivability. Whether you're completing a restoration or building a high-performance off-road rig, this Early Ford Bronco manual transmission swap is engineered to perform.

Featuring a deep 6.16:1 first gear for serious rock crawling and a .76 overdrive for efficient highway cruising, the Bronco TR-4050 swap kit offers the perfect blend of low-speed control and high-speed comfort. With a massive 600 lb-ft torque capacity, this Bronco 5-speed transmission conversion is ideal for stock engines, stroker builds, and Coyote swaps.

Why Choose This TREMEC TR-4050 Bronco Conversion Kit?

• Best 5-speed swap for Early Ford Bronco builds and restorations
• 6.16:1 low first gear for rock crawling, trail driving, and off-road performance
• 6.03 reverse gear for superior maneuverability in tight terrain
• .76 overdrive 5th gear reduces RPM for better fuel economy and highway comfort
• 600 lb-ft torque capacity supports high-horsepower engine swaps
• Short-throw shifting performance for precise gear engagement
• PerfectFit™ design ensures proper fitment in 1966–1977 Ford Bronco
• Ideal Bronco drivetrain upgrade for street, trail, towing, and overlanding

TREMEC TR-4050 Gear Ratios for Early Ford Bronco

Gear Ratios: 6.16, 3.11, 1.71, 1.00, 0.76, and 6.03 Reverse

These optimized gear ratios make the TREMEC TR-4050 transmission one of the best choices for Ford Bronco 5-speed swaps, offering unmatched versatility for off-road crawling and highway cruising.

Complete TR-4050 Conversion Kit Components for Bronco

• TREMEC TR-4050 5-Speed Manual Transmission
  • 600 lb-ft torque rating for high-performance Bronco builds
  • Brand new transmission (no rebuilt or remanufactured components)
  • Helical-cut gears for strength, durability, and quiet operation
  • Die-cast aluminum housing reduces weight while increasing rigidity
  • 6-bolt PTO provision for hydraulic accessories and off-road setups
  • Internal rail shifter system for smooth and precise shifting
  • Tapered bearings improve durability and shaft stability
  • Needle bearings reduce friction, heat, and wear
  • Fully synchronized gears for smooth shifting in all driving conditions
  • Advanced synchronizer technology for reduced shift effort
  • Optimized 5th gear design improves NVH (noise, vibration, harshness)
  • 3.67 qt fluid capacity
• STX Shifter® – Short-throw shifter designed for correct Early Bronco positioning
• Complete hardware kit for installation
• Isolator mount for vibration reduction
• Reverse light wiring connector
• Crossmember for proper drivetrain support
• Transfer case adapter for seamless integration
• Shifter handle and knob
• Adapter plate and pilot bearing
• Long input shaft
• Bearing retainer
• Step-by-step installation instructions
• Factory-backed warranty

Automatic to Manual Bronco Conversion Parts (Optional)

• McLeod billet flywheel – stronger and safer than cast alternatives
• McLeod performance clutch kit – smooth engagement and long service life
• Bellhousing for Coyote engine swaps
• Hydraulic clutch conversion kit – reduces pedal effort and improves drivability
  • Master cylinder
  • Heavy-duty slave cylinder (1,000,000 cycle lifespan)
  • Remote reservoir
  • Braided steel hydraulic line
  • Pedal linkage and hardware
  • Installation instructions
• Transmission and clutch fluids available

*Required for automatic-to-manual Ford Bronco conversions

The Ultimate Early Ford Bronco Transmission Upgrade

If you're looking for the best transmission for Early Ford Bronco, the TREMEC TR-4050 delivers unmatched strength, reliability, and versatility. From rock crawling and trail riding to daily driving and long-distance cruising, this Bronco 5-speed swap kit is engineered to outperform outdated factory transmissions.

Upgrade your drivetrain with confidence and experience why this is one of the most trusted Ford Bronco transmission conversion kits available today.