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TREMEC TR-4050 Conversion Kits for 1966-1977 Ford Bronco

No Obstacles, No Horizon Too Far - 4WD Life

TREMEC TR-4050 Early Ford Bronco

Silver Sport Transmissions has the best-engineered kits to modernize the powertrain of your early Ford Bronco. Our RestoFit® Kits bring the shifter handle to the factory-correct position for the best possible fit and our billet shifter tower provides short, crisp shifts.

Whether you plan to take your vehicle off-road, tow a camper or boat, or cruise the highway, our overdrive transmissions will help you get there.

The TREMEC TR-4050 5-Speed is the strongest 4WD transmission available on the market with a 600 lb-ft torque capacity. It's also brand new, with no remanufactured or rebuilt parts in the TR-4050. If you're stuck in the mud with your current transmission, the ultra-low 1st and rear gears can get you out of any sticky situation you have gotten yourself into! The overdriven 5th gear is perfect for the highway, reducing the NVH (noise/vibration/harshness) and improving your fuel mileage.


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Tremec TR-4050 PerfectFit™ for Early Ford Bronco

Silver Sport Transmissions keeps the past alive and on the trail with a modern TREMEC TR-4050 5-Speed for early Ford Broncos. Now you can cruise and crawl in style with a .76 overdrive for the highway and super low 6.16 1st for when you answer adventure's call. Go ahead and put in a high-powered engine while you're at it because the TR-4050 can handle a whopping 600 lb•ft torque.

When you convert to the TREMEC TR-4050 5-Speed, you will experience:

  • Low, rock crawling 1st gear (6.16) and reverse (6.03)
  • Excellent shift feel and performance
  • Crisp, precise shifts
  • Highway cruising with 5th overdrive gear (.76)


TREMEC TR-4050 Gear Ratios

6.16, 3.11, 1.71, 1.00, 0.76, and 6.03 Reverse


TREMEC TR-4050 Conversion Kit Components 

TREMEC TR-4050 PerfectFit Kit for Early Bronco

  • TREMEC TR-4050 5 Speed Overdrive
    • 600 lb•ft torque capacity
    • BRAND NEW! No remanufactured or rebuilt parts or case
    • High-contact, constant mesh, helical gears for maximum strength
    • Die-cast aluminum alloy housing saves weight while offering considerable rigidity
    • Standard right-hand, six-bolt PTO offers the ability to run hydraulic pumps
    • The multiple rail, internal shifter provides excellent shift feel and performance
    • Tapered bearing on input, main, and counter shafts provide excellent internal stability
    • Needle bearings under gears reduce friction and noise output
    • Fully synchronized
    • Advanced synchronizer technology promotes smoother shifting and reduced shift effort
    • 5th gear synchronizer mounted to the countershaft to improve NVH in overdrive
    • 3.67 qt oil capacity
  • STX Shifter® - Short throw shifter with proper shifter position for Early Bronco
  • Hardware
  • Isolator Mount
  • Reverse Light Connector
  • Crossmember
  • Transfer Case Adapter
  • Shifter Handle
  • Shifter Knob
  • Adapter Plate & Pilot Bearing 
  • Long Input Shaft
  • Bearing Retainer
  • Instructions
  • Factory Warranty - learn more

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Auto to Manual Conversions and Optional Parts

TREMEC TR-4050 4WD 5 Speed Optional Parts for Early Bronco

  • SST Advanced Friction™ Flywheel* - Billet steel, not cast steel, for improved durability and safety 
  • SST Advanced Friction™ Series II Clutch* - High performance, long life packages with easy pedal effort tailored to your needs
  • Quick Draw Brand Bellhousing*
  • Hydraulic Clutch Actuator Kit* - Modern technology with less pedal effort
    • Master cylinder
    • Heavy-Duty concentric slave cylinder - 1,000,000 cycle service life
    • Remote reservoir with hose
    • Braided steel pressure hose
    • Pedal pushrod and all hardware
    • Detailed installation instructions
  • Fluid - Break-In Fluid, transmission fluid, and hydraulic clutch fluid available for purchase

*Required for Automatic to Manual Conversions

Click the 4WD Quick Quote button or call 865-609-8187 to get a detailed estimate.

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Why buy from Silver Sport Transmissions?

  • Fast Shipping
  • Complete Kits
  • Excellent Customer Service
    • Lifetime tech support
    • Knowledgeable staff
  • Premium Components
    • Only SST has experienced and licensed engineers on staff. We know what fits, what works, and how to install it.