Ford 1932-54 Transmission Gear Ratios

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Ford Cars & Light Trucks

85-100HP V8   1932-48

 

With the 28-24-18-15/14
Cluster Gear and the 16 tooth Main Drive Gear
With the 29-24-17-15 Cluster Gear and the 14 Tooth Main Drive Gear With the 29-24-18-14 Cluster Gear and the 15 Tooth Main Drive Gear
1st Gear:  2.820 to 1 1st Gear:  3.520 to 1 1st Gear:  3.114 to 1
2nd Gear: 1.604 to 1 2nd Gear: 1.899 to 1 2nd Gear: 1.773 to 1
3rd Gear:  1 to 1 3rd Gear: 1 to 1 3rd Gear:  1 to 1
Ford Cars & Light Trucks

60 HP V8   1937-40

Note: Ford made the regular 85hp gear set available for 1937-39 commercial vehicles in the optional 73-7006 gearbox. See the 1939 to 1940 gear ratios. 

With the 29-19-17-13
Cluster Gear and the 15 tooth Main Drive Gear

With the 29-23-17-13
Cluster Gear and the 15 tooth Main Drive Gear

With the 29-24-18-14
Cluster Gear and the 15 tooth Main Drive Gear

1st Gear:  3.070 to 1 1st Gear:  3.070 to 1 1st Gear:  3.114 to 1
2nd Gear: 1.765 to 1 2nd Gear: 1.832 to 1 2nd Gear: 1.773 to 1
3rd Gear: 1 to 1 3rd Gear: 1 to 1 3rd Gear:  1 to 1
Mercury Cars

100HP V8   1939-48

Note: Mercury cars normally would not have the 29 tooth cluster gear, but the 28 tooth cluster could have been replaced with the 29 tooth.

With the 28-24-18-15/14
Cluster Gear and the 16 tooth Main Drive Gear
With the 29-24-18-14 Cluster Gear and the 15 Tooth Main Drive Gear
1st Gear:  2.820 to 1 1st Gear:  3.114 to 1
2nd Gear: 1.604 to 1 2nd Gear: 1.773 to 1
3rd Gear:  1 to 1 3rd Gear:  1 to 1
Lincoln-Zephyr Cars

1936-48 All

Note: Lincoln and Zephyr cars had the same gears as Ford transmissions from 1936-39. The higher ratio gears did not come out until 1940 but could have been installed in a 36-39 gearbox.

With the 28-24-18-15/14
Cluster Gear and the 16 tooth Main Drive Gear

With the 26-22-18-14
Cluster Gear and the 18 tooth Main Drive Gear

With the 25-22-18-14
Cluster Gear and the 19 tooth Main Drive Gear

1st Gear:  2.820 to 1 1st Gear:  2.330 to 1 1st Gear:  2.120 to 1
2nd Gear: 1.604 to 1 2nd Gear: 1.577 to 1 2nd Gear: 1.430 to 1
3rd Gear:  1 to 1 3rd Gear:  1 to 1 3rd Gear: 1 to 1
Ford & Mercury Cars

1951-54 As Listed

Note: Beginning with 1951 vehicles, Ford changed to a new style gear with different tooth counts than previously used. This resulted in a slight change in gear ratios from the 1949-50 gearbox.

With the 28-24-18-14
Cluster Gear and the 16 tooth Main Drive Gear (1949-50)
  With the 27-23-17-13
Cluster Gear and the 16 tooth Main Drive Gear (1951-54)
1st Gear:  2.820 to 1 1st Gear:  2.78 to 1
2nd Gear: 1.604 to 1 2nd Gear: 1.62 to 1
3rd Gear:  1 to 1 3rd Gear:  1 to 1
Ford 3 Speed Trucks

1948-64 As Listed

Note: Beginning with 1951 vehicles, Ford changed to a new style gear with different tooth counts than previously used. This resulted in a change in gear ratios from the 1949-50 gearbox. The Heavy Duty 3 Speed  trans is listed for 1948-55.

With the 28-24-18-14
Cluster Gear and the 16 tooth Main Drive Gear (1948-50)
With the 27-23-17-13
Cluster Gear and the 16 tooth Main Drive Gear (1951-54)

With the 40-31-21-17
Cluster Gear and the 20 tooth Main Drive Gear (48-64 HD)

1st Gear:  2.820 to 1 1st Gear:  2.78 to 1 1st Gear:  3.72 to 1
2nd Gear: 1.604 to 1 2nd Gear: 1.62 to 1 2nd Gear: 1.87 to 1
3rd Gear:  1 to 1 3rd Gear:  1 to 1 3rd Gear: 1 to 1
Ford 4 Speed Trucks

1932-64 As Listed

Note: The spur gear 4 speed (non-synchro) was used from 1932-52. The 4 Speed (synchronized) helical gear was used from 1948-64. Both utilized the same gear ratios.

With the 43-36-27-17
Cluster Gear and 17 tooth Main Drive Gear (1932-52)
With the 43-36-27-17
Cluster Gear & 27-17 tooth Main Drive Gear (1948-66)
 
1st Gear:  6.40 to 1 1st Gear:  6.4 to 1
2nd Gear: 3.09 to 1 2nd Gear: 3.09 to 1
3rd Gear:  1.69 to 1 3rd Gear: 1.69 to 1
4th Gear:  1 to 1 4th Gear:  1 to 1

Note: The 28 tooth cluster gear came in two varieties where you had either a 15 tooth or 14 tooth reverse gear. Both have the same forward gear
tooth counts. A Columbia rear axle overdrive would change all the regular ratios effectively. Also, (except for the truck 4 speed and the HD 3 speed gearboxes)
most of the gearsets could be applied in any 1932-48 passenger gearbox, and any 1932-51 pickup truck gearbox.

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