T56 Magnum 6-Speed Conversion Package | 1962-1979 Mopar B-Body | 5.7L Hemi

T56 Magnum 6-Speed Conversion Package | 1962-1979 Mopar B-Body | 5.7L Hemi

T56 Magnum 6-Speed Conversion Package | 1962-1979 Mopar B-Body | 5.7L Hemi

Description

Key Features

  • TREMEC T56 Magnum 6-speed transmission rated for 700 lb-ft of torque capacity
  • Double overdrive gearing with 0.74 fifth and 0.50 sixth gear ratios for relaxed highway cruising
  • 26-spline input shaft and 31-spline output shaft with one-piece chromoly countershaft
  • Triple-cone synchronizers on gears 1-4 and double-cone synchronizers on 5th, 6th, and reverse
  • Lightweight design at approximately 135 lbs dry weight
  • Incredibly short, extremely low-effort shift throws with crisp engagement
  • Complete conversion package includes transmission, bellhousing, flywheel, clutch, and full hydraulic system
  • Designed specifically for 5.7L Gen III Hemi-powered Mopar B-body applications
  • Dual speedometer pickups for mechanical or electronic speedometer compatibility

Description

Converting your classic Mopar B-body from automatic to manual unlocks a driving experience the factory never offered. This complete T56 Magnum conversion package eliminates the parts-sourcing headaches by bundling every component needed to install TREMEC's flagship 6-speed behind your 5.7L Gen III Hemi. Whether you're building a '68 Road Runner, a '70 Coronet R/T, or a '71 Charger, this package delivers modern drivetrain technology engineered to work with classic Mopar muscle.

The TREMEC T56 Magnum represents the evolution of the legendary T56 platform. Unlike the original T56's 450 lb-ft rating, the Magnum handles a massive 700 lb-ft of torque thanks to substantially increased gear face widths and two-piece laser-beam welded gear construction that allows more precise control of tooth angles, pitch, and alignment. The one-piece countershaft with thicker journals replaces the earlier two-piece design's torque-limited splined connection. Spring-loaded ball-type synchronizer inserts reduce friction and eliminate the notchy shifting that plagued earlier designs, while integrated shift fork keys virtually eliminate the possibility of bent forks.

The Gen III Hemi shares the same bellhousing bolt pattern as the Chrysler LA and Magnum small-block family (273, 318, 340, 360), making bellhousing fitment straightforward. This package includes the proper bellhousing matched to both the 5.7L Hemi's crankshaft centerline and the T56 Magnum's input shaft geometry. The complete hydraulic clutch system eliminates mechanical linkage adjustments and provides consistent pedal feel throughout the clutch disc's service life.

This package fits 1962-1979 B-body Mopar vehicles including Dodge Charger, Coronet, Super Bee, and Plymouth Belvedere, Road Runner, GTX, and Satellite. Component selection is customizable during checkout to match your specific build requirements, including transmission gear ratio options, hydraulic release bearing configuration, and driveline components.

What's Included

  • TREMEC T56 Magnum 6-speed transmission (gear ratio options available)
  • Gen III Hemi-specific bellhousing
  • Bellhousing hardware kit
  • Billet aluminum flywheel with 8-bolt crankshaft pattern
  • ARP flywheel bolts
  • Performance clutch kit with pressure plate and disc
  • Pressure plate bolt kit
  • Pilot bearing
  • Hydraulic master cylinder kit
  • Hydraulic clutch release bearing assembly
  • Hydraulic line (30-inch)
  • Transmission mount
  • Speedometer gear (tooth count options available for calibration)
  • Speedometer wiring harness
  • Reverse light wiring harness
  • Shift knob
  • Shift boot
  • Shift lever options (Hurst or custom)
  • Driveshaft yoke (U-joint series options available)
  • Four quarts of TREMEC-approved transmission fluid
  • Lifetime technical support from MDL
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