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Tremec T56 Magnum F Upgraded Level 5 Built Transmission


Tremec T56 Magnum F Upgraded Level 5 Built Transmission

  • Includes our Level 5 / Stage 2 build
  • Brand new upgraded Tremec Magnum F unit
  • Complete disassembly
  • Billet bronze shift fork pads 1-6-R
  • Billet bronze press-fit shifter cup bushing
  • Billet guide pins
  • Carbon-hybrid synchro rings 1-6-R
  • Convert 2nd and 3rd gears to symmetrical engagement design
  • Tolerances set to our specs
  • 26-spline input/31-spline output
  • Professional reassembly
  • 12-month warranty
  • Note: GTO requires a 1-piece driveshaft with 31-spline slip yoke & swap shift lever from the T56
Options: (please type in your options in the comments/notes section when ordering)
  • Oiler sprayer bungs +$275
  • Powder coat case +$300
  • Expedited service +$300 24-hour turnaround
Gear ratio choices:
  • 1st-4th:  2.66, 1.78, 1.30, 1.00 or 2.97, 2.10, 1.46, 1.00
  • 5th: 0.74, 0.80
  • 6th: 0.50, 0.63


Designed to replace T-56 transmissions in 1998-2002 GM F-bodies, the Magnum-F leverages TREMEC’s TR-6060/Magnum architecture in order to provide fourth-gen enthusiasts significantly improved performance and relief from a shrinking pool of quality T-56 replacement parts.

One shifter location is designed for LS1-powered 1998-2002 F-bodies and other applications that utilize a similar shifter position. Beneficiaries include third-generation F-bodies, LT1-powered fourth-gens, LS-swapped late models of all varieties, and sport compact applications such as A80 Supras, FD RX-7s, and more! Where the original Magnum shifter locations may prove too far forward, and the extended length Magnum XL’s too far back, the Magnum-F’s in-between position often proves to be just right.

Inside, the Magnum-F benefits from the same durable componentry found in many of today’s hardest hitting OEM muscle & sports cars. Over the T-56, the Magnum-F boast increased face-width on all gears, a robust combination of double and triple cone synchronizers, enhanced webbing in the main case, provisions for a cooler circuit and more! The shifter provides the precise and communicative shift feel that all Magnums are known for.

Like all TREMEC aftermarket transmissions, the Magnum-F is made from 100% brand-new OEM-quality content.

Add Billet Block-off Plate / Dust Cover

Billet Block-off Plate for Clutch Fork Opening Tremec T56 Magnum

Billet Block-off Plate for Clutch Fork Opening Tremec T56 Magnum

  • Blocks off the unnecessary clutch fork opening found on the new Tremec T56 Magnum 6-speed transmission
  • Prevents debris from entering the bellhousing
  • Reduces dirt and dust from entering the bellhousing
  • Includes mounting bolt
Need Help Deciding?
Weight140 lbs
Dimensions39 × 18 × 18 in


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