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Transmission Interchange Info

Transmission Ratings

The following is compiled data on different transmissions. Some information has not been found yet.

Transmission Ratings:

Transmission

Gear

Torque rating (lb*ft)

Manufacturer

Model

1

2

3

4

5

6
Borg-Warner T-5s Thunderbird turbo coupe

4.03

2.37

1.49

1.00

0.81

-

235
wide ratio 85-89 Mustang

3.35

1.93

1.29

1.00

0.68

-

265
wide ratio 90-93 Mustang

3.35

1.99

1.33

1.00

0.68

-

300
wide ratio 93 Cobra

3.35

1.99

1.33

1.00

0.68

-

310
close ratio Ford Motorsport

2.95

1.94

1.34

1.00

0.63

-

305-330
T56 6-speed

3.36

2.07

1.35

1.00

0.80

0.62

?
Ford Manuals SROD 79-83 Mustang

3.07

1.72

1.00

0.70

-

-

?
Toploader over-drive

?

?

1.00

?

-

-

?
Toploader wide-ratio

2.78

1.93

1.36

1.00

-

-

?
Toploader close-ratio

2.32

1.69

1.29

1.00

-

-

?
Ford Automatics C4

2.46

1.46

1.00

-

-

-

?
C6

2.46

1.46

1.00

-

-

-

?
AOD

2.40

1.47

1.00

0.67

-

-

?
AOD wide ratio

2.84

1.55

1.00

0.67

-

-

?
E40D electronic

2.71

1.53

1.00

0.71

-

-

?
GM Powerglide 2 speed

1.76

1.00

-

-

-

-

?

1.82

1.00

-

-

-

-

?
Jerico 4 speed

?

?

?

1.00

-

-

?
5 speed

?

?

?

1.00

?

-

?
Lenco ?

?

?

?

?

?

-

?
Liberty ?

?

?

?

?

?

-

?
Richmond T-10 4 speed

2.43

1.61

1.23

1.00

-

-

?

2.64

1.75

1.34

1.00

-

-

?

2.64

1.60

1.23

1.00

-

-

?

2.88

1.91

1.33

1.00

-

-

?
4+1 street

3.27

2.14

1.57

1.23

1.00

-

?
Optional 1st gear ratios: 4.41 or 4.06 available
ROD 6 speed

3.27

2.13

1.57

1.23

1.00

0.76

?

4.06

2.22

1.57

1.23

1.00

0.76

?

3.01

1.88

1.46

1.19

1.00

0.62

?
Optional 6th gear ratios: 0.86 or 0.81 available
Tremec 3550

3.27

1.98

1.34

1.00

0.68

-

350
TKO

?

?

?

?

?

-

400?


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