Chrysler Automatic Transmissions
42RE/44RE .69
42RLE .69
45RFE .75
46RE/47RE/48RE .69
545RFE (2003-2005) .67
545RFE (2006+) .50
NAG1 .83
TF727 1.0
TF904 1.0
TF909/TF999/30RH/32RE/32RH 1.0

Ford Automatic Transmissions
4R100/E4OD .71
4R44E/4R55E/A4LD/A4LDE .75
4R70E/4R75E/4R70W/4R75W .70
55R55E/A5LDE .75
55R55N 1.0
55R55S .71
55R55W .75
5R110/5R110W .71
6HP26/6R60 .69
AOD/AOD-E .67
AOD/E4OD .67
AODE/AODEW .70
AXOD-E .69
C-4/C-5/C-6 1.0
Torqshift .71

Ford Manual Transmissions
M5HD .77
M5HD-W .76
M5OD-R1(2.3/3.0) .79
M5OD-R1(4.0) .79
M5OD-R2 .80
M5OD-R4/M1HD .79
M5OD(2.3) .79
M5OD(5.0) .79
M5R2 .75
M5R2-C .75
M6HD-6 .72
Ricardo 6 .63
T45 .67
T5OD(92-98) .78
T5OD(99-05) .68

General Motors Automatic Transmissions
4L80/4L80E .75
5L40E .76
5L50E 1.0
6L80E .67
Allison 1.0000 (5 spd) .71
Allison 1.0000 (6 spd) .62
TH200-4R .67
TH350 1.0
TH400 1.0
TH700R4/4L60E/4L60E .70

Other Automatic Transmissions
AS-8 1.0
AW30-40 .75
AW4 .75

Other Manual Transmissions
2TR-3650 (wide) .67
Aisin AR5 .73
Aisin AX-15 .79
Aisin AX-4 1.0
Aisin AX-5 .85
Borg Warner SR4 1.0
Borg Warner T14 1.0
Borg Warner T15 1.0
Borg Warner T150 1.0
Borg Warner T176 1.0
Borg Warner T177 1.0
Borg Warner T178 1.0
Borg Warner T18 1.0
Borg Warner T18a 1.0
Borg Warner T19 1.0
Borg Warner T4 1.0
Borg Warner T5 .86
Borg Warner T84 1.0
Borg Warner T85 1.0
Borg Warner T86 1.0
Borg Warner T90 1.0
Borg Warner T98 1.0
G56 .79
Geo Tracker .86
Getrag 238 .79
Getrag 260 .81
Getrag 260 (CTS 03-04) .82
Getrag 360 .77
Getrag F23 .69
Land Rover R380 .77
Mitsubishi FM145 .79
NP260 .73
NP435 1.0
NSG370 Close Ratio .84
NSG370 Wide Ratio .83
NV1500 .83
NV2550 .75
NV3500/NV3550/NV3500HD .73
NV4500 (Early GM) .73
NV4500/NV4500HD .75
NV5600 .73
Peugot BA-10 .79
SM420 1.0
SM465 1.0
Suzuki Samurai 1.0990 and later .87
Suzuki Samurai to 1.0989 .80
TR-4050 (close) .77
TR-4050 (wide) .76
Tremec 1.009mm .77
Tremec T-5 (close) .73
Tremec T-5 (medium) .72
Tremec T-5 (wide) .72
Tremec T56 .50
Tremec T56 .57
Tremec TR-3450 .83
Tremec TR-3650 (close) .67
ZF S6-40 .49
ZF S6-650 .72

Toyota Automatic Transmissions
A340E/A340F/A340H .71
A343F .75
A43D .69
A44D .69
A750E/A750F .72
C151 .73
C50/C150 .82
C52/C59 .82
C56 .82
C60 .73
C65M .73
E153 .73
E350/E351 .73
G40 4.74
G52 .85
G54 .80
G57 .85
G58 .85
H41 1.0
H42 1.0
H55F .85
J30 1.0
R150/R150F .84
R151F .83
RA60/RA60F .849
RA61F .799
S51 .73
S54 .82
U140E/U140F 1.0.02
V160 .79
W46 1.0
W55 .85
W56 .85
W58 .78
W59 .85

Notes & Disclaimer
The Gear Ratio Calculator is for comparison only.
It's accuracy is affected by many factors, including but not limited to:
  actual tire size vs nominal tire size
  tire rolling radius
  torque convertor (or clutch) slip
  aerodynamic drag
  mechancical drag / rolling resistance
  speedometer / odometer accuracy
  typographical or other errors in the OD chart
  equipment changes
  design changes

Use the calculator at your own risk.