TREMEC T56 Magnum 6-Speed Package | Mopar 5.7L/6.1L Hemi | Right Hand Starter

TREMEC T56 Magnum 6-Speed Package | Mopar 5.7L/6.1L Hemi | Right Hand Starter

TREMEC T56 Magnum 6-Speed Package | Mopar 5.7L/6.1L Hemi | Right Hand Starter

Description

TREMEC T56 Magnum 6-Speed Package | Mopar 5.7L/6.1L Hemi | Right Hand Starter

Key Features

  • 700 lb-ft torque capacity - nearly double the stock T56
  • Dual overdrive ratios (0.74 fifth, 0.50 sixth) slash highway RPM for better cruising and fuel economy
  • 26-spline input shaft and 31-spline output shaft for maximum strength
  • Triple-cone synchronizers on gears 1-4; double-cone on 5th, 6th, and reverse for precise engagement
  • Forged gears with laser-beam welded plates for improved tooth geometry and positive shift stops
  • One-piece countershaft with thicker journals eliminates the weak point of earlier two-piece designs
  • Multiple gear ratio options available: 2.66 close-ratio or 2.97 wide-ratio first gear sets
  • Dual speedometer pickups support both mechanical and electronic speedometers
  • Right hand starter configuration maintains factory starter location on Gen III Hemi engines
  • Bellhousing utilizes the same bolt pattern as classic Chrysler LA/Magnum small-blocks (273, 318, 340, 360)
  • 135 lbs dry weight - manageable for garage installations
  • Fully customizable package - select every component to match your build

Description

Swapping a modern Gen III Hemi into your classic Mopar demands a transmission that can handle the power while delivering a modern driving experience. The TREMEC T56 Magnum 6-speed is the answer - the aftermarket's premier 6-speed performance manual transmission, capable of withstanding 700 lb-ft of torque while providing incredibly crisp, precise shifts. This complete conversion package is engineered specifically for 5.7L and 6.1L Hemi engines with right hand starter configuration, giving you everything needed to mate modern Hemi power to a world-class manual gearbox.

The Magnum represents a ground-up redesign based on the TR-6060 found in factory Challengers, Vipers, and Camaros. Wider gear face widths and two-piece laser-beam welded gear construction allow for more precise shaping of engagement teeth with better pitch and angle control, plus positive stops that prevent over-travel on aggressive shifts. Spring-loaded ball-type synchronizer inserts replace the stamped keys of earlier designs, dramatically reducing friction and eliminating notchy shift feel. New shift forks feature permanently mounted links with enhanced cross sections for zero deflection under load. The one-piece countershaft - originally developed for the Dodge Viper - eliminates the torque-limited splined connection of earlier two-piece designs.

The dual overdrive gear set transforms highway driving. Fifth gear (0.74) provides a comfortable cruising ratio, while sixth (0.50) drops RPMs even further for long-haul efficiency. Wide-ratio variants (2.97 first gear) deliver stronger launches and better gear spacing for street performance, while close-ratio options (2.66 first gear) keep the engine in its powerband for competition use. The Gen III Hemi shares the same bellhousing bolt pattern as classic Chrysler LA and Magnum small-blocks, simplifying the swap into vintage A-body, B-body, and E-body Mopars.

Our guided package builder lets you configure every component for your specific application - from transmission ratio selection and clutch assemblies to hydraulic systems, flywheels, shifters, and speedometer components. Depending on your vehicle, tunnel modifications may be required. MDL's concierge service provides expert guidance to ensure you select the right components for your project and budget. Lifetime technical support included.

What's Included

This is a fully customizable package. Use our guided selection system to configure:

  • TREMEC T56 Magnum 6-speed transmission (choice of gear ratios: 2.66 close-ratio or 2.97 wide-ratio first gear)
  • Bellhousing for Mopar 5.7L/6.1L Hemi applications
  • Bellhousing hardware kit
  • Clutch assembly options (10.5-inch, 26-spline configurations)
  • Clutch set options
  • Flywheel for 5.7L Hemi (8-bolt pattern)
  • Pressure plate bolts (standard or ARP)
  • Flywheel bolts (ARP)
  • Hydraulic master cylinder kit options
  • Hydraulic clutch release bearing options
  • Hydraulic line (30-inch)
  • Transmission mount
  • Shift knob selection (multiple styles and colors)
  • Shift lever options (custom or Hurst)
  • Shift boot options
  • Speedometer cable adapter
  • Speedometer driven gear (16-21 tooth options for calibration)
  • Speedometer sensor (electronic)
  • Speedometer gear retaining clip
  • Four quarts Dexron III ATF or equivalent transmission fluid
  • Speedometer wiring harness
  • Reverse light wiring harness options
  • Driveshaft slip yoke (31-spline, 1310/1330/1350 U-joint options)
  • Complete installation instructions
  • MDL lifetime technical support
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