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Home Store GM Corvette (C1) 1955-1962 Tremec Transmissions - Bare Units NEW T56 MAGNUM 6-Speed for GM LS, 2.66/0.63 Ratios
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NEW T56 MAGNUM 6-Speed for GM LS, 2.66/0.63 Ratios


Ordering

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Kit Components

NEW T56 MAGNUM 6-speed manual transmission features:
  • 700HP/700LB-FT rating.
  • Gear Ratios: 2.66 1st; 1.78 2nd; 1.30 3rd; 1.00 4th; 0.80 5th; 0.63 6th; 2.90 reverse.
  • 1-1/8" x 26 spline GM pattern input shaft.
  • 31 spline Ford pattern output shaft.
  • Both Mechanical and Electronic speedometer outputs.
  • Three shift positions available: 18.9", 23.0", and 26.6" from the rear face of the engine block.
Available late March 2009 for mate-up to GM LS-series engines.  Other applications coming soon!
NEW T56 MAGNUM 6-Speed for GM LS, 2.66/0.63 Ratios

Overview-Ordering

Introducing the Tremec® T-56 Magnum 6-speed manual transmission, the long awaited and highly anticipated replacement for the original T-56.  Based heavily on the TR-6060, the all-new Magnum takes the best of Tremec’s® current OEM design and manufacturing technologies and combines them with the most popular features of their intensely popular TKO 5-speed.  The result is the smoothest shifting greatest driving, strongest and most versatile 6-speed aftermarket transmission Tremec® has ever produced.

The T56 MAGNUM 6-speed manual transmission features:
  • 700HP/700LB-FT rating.
  • Gear Ratios: 2.66 1st; 1.78 2nd; 1.30 3rd; 1.00 4th; 0.80 5th; 0.63 6th; 2.90 reverse.
  • 1-1/8" x 26 spline GM input shaft.
  • 31 spline Ford output shaft.
  • Both Mechanical and Electronic speedometer outputs.
  • Three shift positions available: 18.9", 23.0", and 26.6" from the rear face of the engine block.
Available late March 2009 for mate-up to GM LS-series engines.  Other applications coming soon!




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Speed Analyzer

GM Muncie / T10 vs. T56

1. Pick your T56:

T56 6-speed (550 Torque)

(Reduction in RPM: 20%, 38%)

T56 6-speed (700 Torque)

(Reduction in RPM: 20%, 38%)

T56 6-speed (700 Torque)

(Reduction in RPM: 26%, 50%)

2. Pick your tire size:  /  R-

3. Pick your cruising RPMs:

Results: The Best of Both Worlds!

Low Gear Acceleration AND Low RPM Cruising!

1st Gear Comparison

Final Gear Comparison

Stock
Differential
Ratio

TREMEC

Accelerates like:

Stock Final Gear

TREMEC
5th Gear

TREMEC
6th Gear

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Rolling diameter for selected tire:    inches

TREMEC Gear Set:

Torque: 

Muncie/T10 Gear Set: 1st=2.52:1; 4th=1:1

Testimonials

Recent Testimonials...


Todd Chynoweth - '67 Firebird

I thought I would share my 1967 Firebird convertible with you, I have driven the car for two summers with the Tremec TKO 500.  I purchased the PerfectFit kit and installed it myself with no problems.  I must say it is the best upgrade that I have made to the car.  The car is much more enjoyable to drive on the highway and the fuel economy is greatly improved.
Thank you,
Todd Chynoweth
WI

 

Ken Thrower - '69 Firebird

 

Thanks for a great product and support!
Ken Thrower
TKO600

See more testimonials >



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