Put overdrive in your Classic vehicle. Conversions of automatic or manual transmissions.  We specialize in TREMEC T5's, TKO and T56 Magnums.

208-453-9800

"Five/Six Speed Conversion Specialists"

 

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For help and guidance check out Tech Alley.
When you are ready to order review our ordering options in Customer Service then check out the Product Catalog. 

Have Questions? Send us an email with your details.

Note: If you already have a transmission, check out our transmission specs page to be sure the type you have will meet the torque your engine is providing.  

 

Tech Alley                              "Where you find all the answers."

The solution to 2005-up Ford Mustang S197 Shift problems

Are you plagued with shifting issues in your 2005-up Mustang, including the 2011 and 2012 Mustang’s? Have you beefed up the motor with power adders, pushing beyond the limits of the TR3650 (2005-2010) or Getrag MT-82 (2011-2012)? Is the 2-piece driveshaft causing vibration issues at high speeds?

 

TREMEC S197 T-56 Magnum XL

 The TREMEC® T56 Magnum XL 6-speed transmission is aimed specifically at S197 Mustang enthusiasts! The new ‘direct-shift” T56 Magnum™ XL for 2005-up Ford Mustangs represents a long awaited solution to the semi-remote shifter woes experienced by many 2005-up Mustang owners, as well as, TREMEC’s most significant foray into the Mustang aftermarket since the days of emerging 5.0 Fox-body performance!

Shift issues solved

Designed almost exclusively with S197 Mustangs in mind, this new model draws from a combination of proven OE (Shelby GT500) and racing (Grand Am Cup) technologies. Featuring an application specific ‘direct-shift’ extension housing, the Magnum solves the issue of numb, inaccurate shifts offered by the factory semi-remote shifter; replacing them instead with crisp, clean, confidence-inspiring throws. The S197’s exceptional driver ergonomics are maintained; along with the added ability to custom tailor shift action thanks to TREMEC’s innovative “adjustable-bias” short throw shifter, standard on every new assembly!

T-56 Magnum XL

TREMEC S197 T-56 Magnum XL

High Performance kit

Other significant features include a slip yoke rear interface, eliminating the need for complex 2-piece driveshafts, and an SFI-approved steel bellhousing for added safety in high-horsepower applications!  Installation is simple thanks to thoughtful design by TREMEC engineers and a TREMEC supplied swap-specific crossmember. In most cases users can even retain their factory clutch release system. Like all Magnum series transmissions, the new model carries with it a generous 700 lb-ft torque capacity rating, and the choice of two exclusive gear ratio combinations.

Wide ratio & short ratio gear choices

TREMEC
Part Number
Kit / Trans
Application Torque Cap.
(lbs-ft)
Gear Ratio Chart
1st 2nd 3rd 4th 5th 6th Rev
TUKT12019 /
TUET11430
S197 700 2.66 1.78 1.30 1.00 0.74 0.50 2.90
TUKT12021 /
TUET11940
S197 700 2.97 2.10 1.46 1.00 0.80 0.63 2.90

For comparison purposes, the following chart shows the 2005-2010 TR3650 ratios and the 2011-2012 Getrag transmission ratios.

Trans Application Torque Cap.
(lbs-ft)
Gear Ratio Chart
1st 2nd 3rd 4th 5th 6th Rev
TR3650 S197 450 3.38 2.00 1.32 1.00 0.68   3.38
Getrag MT-82 S197-V8 383 3.66 2.43 1.69 1.32 1.00 0.65 ?
Getrag MT-82 S197-V6 370 4.24 2.54 1.66 1.24 1.00 0.70 ?

Remember, when changing from one transmission to the other that the rear-end ratio is going to make a difference. Stock ratio's range from 2.73, 3.31, 3.55, 3.73 depending on V6 or V8 and stock vs performance package etc.

How does the T56 Magnum compare to previous T-56's?

The kingpin of TREMEC’s high performance line-up, the all-new T-56 Magnum takes the very best from current OEM technologies and pairs it with the most popular features of the all-business TKO 5-speed.  Just what is it that makes the TREMEC T-56 Magnum better than its predecessors? 

Convinced that you need one?

Give us a call today.  Our kit will include all that you need for a successful conversion to the S197 Magnum XL 6-speed.

  • S197 Magnum XL Transmission
  • Quicktime SFI bellhousing
  • Crossmember
  • 1-piece Driveshaft
  • Shift lever and ball
  • Electrical Harness
  • Speedometer calibration box (2011+)

Also available are upgraded clutch choices and upgraded hydraulic throwout bearing.

You can also send us your details and we'll get back to you with a quote.

208-453-9800

 



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 Last edited: 2014-04-07 22:10