TREMEC T56 Magnum 6-Speed Conversion Package | 1973-1981 Firebird | Console

TREMEC T56 Magnum 6-Speed Conversion Package | 1973-1981 Firebird | Console

TREMEC T56 Magnum 6-Speed Conversion Package | 1973-1981 Firebird | Console

Description

TREMEC T56 Magnum 6-Speed Conversion Package | 1973-1981 Firebird | Console

Key Features

  • 700 lb-ft torque capacity - nearly double the original T56
  • Multiple gear ratio options: Close Ratio (2.66 first) and Wide Ratio (2.97 first) with double overdrive
  • Triple-cone synchronizers on 1st-4th gears, double-cone on 5th-6th for precise, low-effort shifts
  • 26-spline input shaft and 31-spline output shaft - accommodates single and twin-disc clutch setups
  • 135 lbs dry weight - lighter than most 6-speed alternatives
  • One-piece countershaft with widened gear faces and laser-beam welded gear construction
  • Dual speedometer outputs - mechanical and electronic compatibility
  • Designed for Pontiac BOP V8 engines with console-equipped second-generation Firebirds
  • Guided package builder walks you through transmission, clutch, hydraulic, and driveline component selection

Description

Ditch the tired 3-speed automatic or worn-out 4-speed manual and upgrade your '73-'81 Firebird to a modern double-overdrive 6-speed. The TREMEC T56 Magnum combines TR-6060 OEM architecture with the popular features of TREMEC's TKO 5-speed, delivering 700 lb-ft of torque capacity and highway-friendly overdrive ratios that drop cruising RPMs while putting more smiles per mile on your face.

Inside the Magnum, substantially widened gear faces and a robust one-piece countershaft with thicker journals handle big power reliably. Each speed gear features two-piece laser-beam welded construction that enables precise shaping of engagement teeth with better pitch and angle control, plus positive stops to prevent over-travel during aggressive shifts. Spring-loaded ball-type shift detents replace traditional stamped keys, eliminating notchy engagement and delivering remarkably short, smooth shifts.

This package is purpose-built for console-equipped second-generation Firebirds running Pontiac BOP V8 engines. The Magnum uses the same bellhousing bolt pattern as the original T56 but with dramatically improved internals. MDL's guided package configurator walks you through every component choice - from transmission gear ratios to bellhousings, flywheels, clutch systems, hydraulic releases, shifters, and driveline components. Little to no tunnel modification is typically required, and the shifter position is retained for that stock look and feel with vastly improved performance.

Dual speedometer pickups provide compatibility with both mechanical factory gauges and electronic speedometer systems, making integration with modern EFI conversions straightforward. Whether you're building a highway cruiser or a weekend warrior, the Magnum's combination of strength, smooth shifting, and versatility makes it the premier 6-speed upgrade for your second-gen Firebird.

Kit Includes

  • Choice of TREMEC T56 Magnum transmission (Close Ratio 2.66 or Wide Ratio 2.97 first gear options)
  • Application-specific custom shifter for console fitment
  • BOP-pattern bellhousing
  • Hardware installation kit
  • Choice of steel or aluminum flywheels (multiple balance options)
  • ARP flywheel bolt set
  • Clutch system options (single-disc and twin-disc configurations)
  • Heavy-duty pilot bushing for twin-disc applications
  • Pressure plate bolt set options (standard or ARP)
  • Hydraulic clutch pedal assembly
  • Pedal pad kit (dual-bore or master-bore options)
  • Hydraulic master cylinder kit options
  • Hydraulic release bearing selections
  • Braided hydraulic line assembly
  • Shift knob options (multiple colors, materials, and custom engraving available)
  • Shift knob thread adapters (3/8-16 and 3/8-24 options)
  • Shift lever options
  • Shift boot assembly
  • Speedometer cable adapter (chrome or black)
  • Speedometer driven gear (16-21 tooth options)
  • Speedometer gear retaining clip
  • Speedometer wiring harness
  • Reverse solenoid wiring harness
  • Reverse lockout controller
  • Reverse light wiring harness
  • TREMEC-approved transmission fluid (4 quarts)
  • Transmission crossmember mount
  • Driveshaft yoke selection (1310, 1330, or 1350 series - 31-spline)
Subtotal 0.00 0 selected
Final step

Review your build

Make sure everything looks right. Click Edit on any row to change a choice.

Package total 0.00