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 rated at 700 lb-ft torque capacity - nearly double the original T56
  • Complete customizable package with multiple transmission, clutch, hydraulic, and shifter options
  • Designed for 1962-1979 Mopar B-Body chassis with 5.7L Gen III Hemi engine swaps
  • Double overdrive gear ratios for highway efficiency while maintaining street performance
  • 26-spline input shaft with 31-spline output accommodates high-torque applications
  • Triple-cone synchronizers on 1st-4th gears, double-cone on 5th, 6th, and reverse for smooth shifts
  • Compatible with internal and external hydraulic slave cylinder configurations
  • Multiple shift lever positions including mid-shift provisions for bench seat applications
  • Speedometer gear options (16-21 tooth) for accurate calibration with various axle ratios
  • Complete wiring harness solutions for electronic speedometer and reverse light integration

Description

Transform your automatic-equipped Mopar B-Body into a true driver's car with this comprehensive T56 Magnum conversion package. Engineered for 1962-1979 B-Body muscle cars - Charger, Road Runner, GTX, Super Bee, and Coronet - running modern 5.7L Gen III Hemi powerplants, this package eliminates the slush box and installs TREMEC's flagship double-overdrive 6-speed manual transmission. The Gen III Hemi shares the same bellhousing bolt pattern as the classic LA and Magnum small blocks, making it an ideal candidate for this swap.

The T56 Magnum combines the best of TREMEC's OEM TR-6060 technology with the versatility of their TKO 5-speed platform. Rated at a massive 700 lb-ft of torque - nearly double the original T56 capacity - it handles serious power from modified Hemis without breaking a sweat. The transmission weighs approximately 135 lbs dry and delivers incredibly short, low-effort shift throws thanks to spring-loaded ball-type shift keys that eliminate the notchy feel of earlier designs. A one-piece countershaft and laser-beam welded gears with increased face widths provide the strength that modern supercharged and turbocharged builds demand.

This package approach lets you configure the exact conversion your project requires. Choose from three T56 Magnum transmission variants with different gear ratio sets, complete clutch assemblies, hydraulic release bearing systems in multiple configurations, and custom or Hurst shift levers. The included bellhousing bolts directly to 5.7L Hemi engines using the shared small-block pattern, while the billet steel flywheel features an 8-bolt crankshaft attachment. Electronic speedometer and reverse light harnesses maintain full gauge functionality in your resto-mod build.

Every component is carefully matched for B-Body tunnel clearance and driveline geometry. The transmission mount positions the Magnum correctly, while slip yoke options in 1310, 1330, and 1350 U-joint sizes accommodate your driveshaft requirements. The transmission accepts approximately 4 quarts of TREMEC-approved fluid (HP-MTF, Synchromesh, or Dexron III ATF). Professional installation recommended for proper clutch hydraulic bleeding, driveshaft modifications, and tunnel clearancing if required.

Package Configuration Options

  • TREMEC T56 Magnum 6-speed transmission - choose from three available gear ratio variants
  • Bellhousing for 5.7L Gen III Hemi applications
  • Hardware kit with all necessary bellhousing-to-block fasteners
  • Billet steel flywheel with 8-bolt crankshaft attachment
  • ARP flywheel bolts for secure crankshaft mounting
  • Pressure plate bolts - standard or ARP upgrade
  • Clutch assembly with disc and pressure plate
  • Pilot bearing for proper input shaft support
  • Hydraulic master cylinder kit
  • Hydraulic release bearing - internal or external slave configurations available
  • Hydraulic clutch line (30-inch)
  • Shift lever options - Hurst or custom billet designs
  • Shift knob - multiple colors, finishes, and custom options available
  • Shift boot with choice of styles
  • Speedometer drive gear (16-21 tooth options for ratio calibration)
  • TREMEC-approved transmission fluid (4 quarts required)
  • Transmission crossmember mount
  • Electronic speedometer signal harness
  • Reverse light wiring harness options
  • Slip yoke - 31-spline output in 1310, 1330, or 1350 U-joint configurations
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