TR4050 5-Speed Conversion Package | 1973-1979 Ford Bronco and F-Series | Manual Trans

TR4050 5-Speed Conversion Package | 1973-1979 Ford Bronco and F-Series | Manual Trans

TR4050 5-Speed Conversion Package | 1973-1979 Ford Bronco and F-Series | Manual Trans

Description

TR4050 5-Speed Conversion Package | 1973-1979 Ford Bronco and F-Series | Manual Trans

Key Features

  • 600 lb-ft torque capacity - the strongest manual 5-speed available for truck applications
  • 6.16:1 granny low first gear for aggressive crawling, towing, and oversized tires
  • 0.76:1 overdrive fifth gear drops highway RPM for improved fuel economy and reduced engine wear
  • Gear ratios: 6.16, 3.11, 1.71, 1.00, 0.76 OD (reverse 6.03)
  • Lightweight die-cast aluminum alloy housing reduces drivetrain weight while maintaining rigidity
  • High-contact, constant-mesh helical gears for maximum strength
  • Tapered roller bearings on input, main, and counter shafts for internal stability under heavy loads
  • Single- and double-cone synchronizers with carbon friction material for silky-smooth shifts
  • Countershaft-mounted 5th gear synchronizer reduces NVH in overdrive
  • 10-spline input shaft with 23-spline transfer case output pattern
  • Standard right-hand six-bolt PTO provision for hydraulic pumps and auxiliary equipment
  • 164 lbs dry weight; 3.7 qt fluid capacity
  • 12-month/12,000-mile TREMEC warranty plus MDL extended coverage and lifetime tech support

Description

Your worn three- or four-speed manual was designed for a different era - before 35-inch tires, before highway speeds climbed, and before fuel economy mattered. This complete conversion package upgrades 1973-1979 Ford Broncos and F-Series trucks to the TREMEC TR4050 - the strongest manual 5-speed available with a massive 600 lb-ft torque capacity. The 6.16:1 granny low first gear delivers enormous torque multiplication for rock crawling, heavy towing, or starting on steep grades with oversized tires, while the 0.76:1 overdrive fifth gear drops cruise RPM by 24% for improved fuel economy, reduced engine wear, and a quieter cab at highway speeds.

The TR4050 is engineered for punishment. High-contact, constant-mesh helical gears provide maximum strength, while tapered roller bearings on the input, main, and counter shafts ensure internal stability under heavy loads. All forward gears are fully synchronized using carbon friction material single- and double-cone synchronizers - no more double-clutching like the old crash-boxes. A countershaft-mounted 5th gear synchronizer specifically targets NVH in overdrive, eliminating the gear whine that plagues many truck transmissions. The die-cast aluminum alloy housing cuts significant weight compared to cast iron cases while maintaining rigidity where it counts.

Designed as a direct replacement for NV4500, NP435, T18, and T19 transmissions that have been out of production for years, the TR4050 gives you a brand-new transmission with factory warranty support instead of a questionable used core with unobtainable parts. The 23-spline six-bolt transfer case pattern maintains 4WD compatibility, and the standard right-hand six-bolt PTO provision accommodates hydraulic pumps or other auxiliary equipment for work truck applications. The 10-spline input shaft accepts standard truck clutch systems.

This package is designed specifically for 1973-1979 Ford Broncos and F-Series trucks originally equipped with manual transmissions. The transmission weighs 164 lbs dry and holds 3.7 quarts of fluid (TREMEC HP-MTF, Synchromesh, or Dexron III ATF approved). Every TR4050 is made from 100% brand-new OEM-quality materials and includes TREMEC's 12-month/12,000-mile warranty - plus MDL extends that coverage by an extra year from install date with an additional 1-year grace period. Purchase the complete package and you get lifetime technical support from the specialists who know these conversions inside and out.

What's Included

  • TREMEC TR4050 5-speed manual transmission (brand new, OEM-quality)
  • Transmission installation kit with mounting hardware and gaskets
  • Optional steel or aluminum flywheel (multiple balances available)
  • Optional ARP or standard flywheel bolts
  • Optional clutch set with pressure plate and disc
  • Optional ARP or standard pressure plate bolts
  • Optional bellhousing fork boot
  • Optional shift knobs (multiple styles, finishes, and custom options)
  • Optional shift ball thread reducers
  • Optional shift levers
  • Optional shift boot
  • Optional reverse light wiring harness
  • Optional transmission oil (4 quarts)
  • Installation instructions
  • Lifetime technical support with complete package purchase
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