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TREMEC T56 6 speed

Click here for a link to get to the online Service Manual for this transmission.

Features and Benefits:

Six-speeds

                                                                        Applicable to a wide range of vehicles requirements

Strong!  85mm Center Distance

Rated 400-550 ft/lb depending on application!

Double overdrive

Provides extended ratio coverage and allows for closer ratio steps

Aluminum die cast housings

Lightweight, durable construction

Tapered roller bearings on shafts

Reduced noise and improved durability

Needle bearings under speed gears

Improves high speed performance and reduced shift effort

Advanced synchronizer technology:
* Powdered steel formed blocker rings
* Organic friction material
* Double cone design
* Patented strut-type design

Consistency, high quality
Improved durability
Lower shift effort 
Improved durability

Overdrive synchronizers placed on                                      countershaft

Lower shift effort and reduced noise

Constant mesh, synchronized reverse

Positive engagement, improved durability and reduced noise

Internal, single rail shift system

Enhanced shift feel, improved durability

Integral clutch housing w/adapter ring

Increased driveline bending strength with mounting flexibility

Uses 4 qt of common Dexron III trans fluid

Easy to find, inexpensive

90 day Factory warranty

Extended warranty available (call)

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Cool Pages:
Gear Calculator
Build Quote
Tech Tips
 

Great for:
  Pro-Touring
  Hot Rods
  Street Rods
  Musclecars
  Pro-Street
  Drag Race
  Road Race
  Trucks
  and more!

Application

Input/Output Splines

Ft/Lb

1st

2nd

3rd

4th

5th

6th

Rev

GM Aftermarket

26 / 27

400

2.97

2.07

1.43

1.00

0.80

0.62

3.28

5.0 Mustang Aftermarket

10 / 31

400

2.97

2.07

1.43

1.00

0.80

0.62

3.28

‘93 - ‘97 GM F-Body

26 / 27

450

2.66

1.78

1.30

1.00

0.74

0.50

2.90

‘98 GM F-Body

26 / 27

450

2.66

1.78

1.30

1.00

0.74

0.50

2.90

‘99 GM F-Body

26 / 27

450

2.66

1.78

1.30

1.00

0.74

0.50

2.90

4.6L Mustang

10 / 31

400

2.97

2.07

1.43

1.00

0.80

0.62

3.28

2003+ Viper (TUET-1806 ONLY available through Chrysler )

26 / 30

550

2.66

1.78

1.30

1.00

0.74

0.50

2.90

Read more about the strength/durability of these transmissions here! (click here)

T56 6 speed

Available Applications:

Part #

A

B

C

D

Measurement A for a Muncie 4sp (i.e. a ‘69 Chevelle). 

GM Aftermarket*

1386-000-011

21.6

n/a

21.5

26.9

16.75”

5.0 Mustang Aftermarket

1386-000-012

26.4

5.3

26.4

33.1

 

‘93 - ‘97 GM F-Body

1386-000-016

28.3

4.9

25.9

31.3

23.75”

‘98 GM F-Body

1386-000-017

29.4

5.5

26.6

31.9

 

‘99 GM F-Body

1386-000-020

29.4

5.5

26.6

31.9

23.75”

4.6L Mustang

TUET 1259/60

26.4

5.3

26.6

33.1

 

 

* GM Aftermarket T56 doesn’t have a bellhousing, it bolts up to your GM bellhousing, which is about 6.5”.

Read about installing a T56 into a:

Designed for

©  2014 Wedan Street & Performance  All rights reserved

This website is a comprehensive collection of information regarding the installation of TREMEC transmissions into various vehicles. Material contained in here may be reproduced for PERSONAL USE ONLY. No material may be redistributed in electronic or printed form without the written permission of Brad Wedan (owner). Owner believes to the best of his knowledge this information to be correct, however no warranty is made as to its accuracy. Owner also disclaims any liability for financial loss, property damage or injury in connection with use of this information. Not affiliated with, endorsed or compensated by TTC, or any sanctioning body mentioned within. Any trademarked names are property of their respective trademark holder and are used for identification purposes only. Portions of this website may be copyrighted by other individuals or organizations.

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