Borg-Warner T14

The Borg-Warner T14 was a light duty 3-speed transmission found in Jeep CJ5s and Jeepster C101s between 1967 and 1975. It was the base transmission option for the AMC 232 I6 and AMC 258 I6 engines.

This transmission has three forward gears and one reverse. All forward gears are synchronized.

For information removing, rebuilding, diagnosing, or adjusting this transmission please refer to the factory service manual guide below.

On CJ models, the factory recommended fluid change interval is every 15,000 miles. On truck models such as the Jeepster Commando, the fluid change interval is every 30,000 miles.

Gear Ratios

Reverse3.10
1st Gear3.10
2nd Gear1.61
3rd Gear1.0

Fluid Type and Capacity

LubricantSAE 80W GL4
SAE 80W-90 GL4
Capacity1.25 qts
Fill to hole
Avoid GL-5 lubricant, which can cause increased wear on the brass synchros found in this transmission

Other Specifications

Weight81lbs
Length8.75″
Input Splines10
Output Splines10
Pilot Tip Width19/32″
or
3/4″

Transfer Case Compatibility

From the factory, the T14 was paired with the Jeep Dana Spicer Model 18 transfer case, only the large (4″) input bore versions.

This transmission was available attached to the Jeep Dana Spicer Model 20 transfer case in the 1972-1975 Jeeps with the AMC 232/258 I6 engines.

The T14 has a 10-spline output shaft/transfer case input gear, which was considered a unique choice for spline count, and was eventually retired when Jeep went back to a 6 spline count with the T15 transmission.

Engine/Bellhousing Compatibility

The T14 used a Buick bellhousing from 1967-1970. It is possible to adapt this transmission to many GM bellhousings using this adapter.

From 1972-1975, Jeeps with the AMC 232/258 I6 engines had their own dedicated bellhousing.

Write-ups and Tutorials

To Be Completed

Parts and Fluids

Engine Fluids

EngineFluid TypeCapacity
AMC 2.5L I4Above 0°F: 10W-30
Below 60°F: 5W-30
4.0 qts
AMC 4.0L I6Above 0°F: 10W-30
Below 32°F: 5W-30
6.0 qts
GM 2.5L I4Above 0°F: 10W-30
Below 0°F: 5W-30
3.0 qts
Renault 2.1Ltbdtbd
VM Motori 2.5Ltbdtbd

Transmission Fluids

TransmissionFluid TypeCapacity
Chrysler A904 3-Speed
Aisin-Warner AW-4 4-Speed
Chrysler 30RH 3-Speed
Borg-Warner T-4 4-Speed ATF Dexron II1.75qts
Aisin-Warner AX4 4-Speed75W-90 GL3 or GL4
10W-30 Motor Oil
2WD: 3.7qts
4WD: 3.5qts
Borg-Warner T-5 5-SpeedATF Dexron II1.75qts
Aisin-Warner AX5 5-Speed75W-90 GL3 or GL4
10W-30 Motor Oil
2WD: 3.7qts
4WD: 3.5qts
Peugeot BA-10/5 5-Speed
Aisin-Warner AX15 5-Speed75W-90 GL3 or GL4
10W-30 Motor Oil
2WD: 3.32qts
4WD: 3.27qts
New Venture Gear NV3550 5-SpeedMopar MT Fluid
SAE 30W Oil
3.3qts

Axle Fluids

AxleFluid TypeCapacity
Dana 3075W-90
75W-140 (towing)
1.26qts
Dana 3575W-90
75W-140 (towing)
1.75qts
Dana 4475W-90
75W-140 (towing)
2.00qts
Chrysler 8.2575W-90
75W-140 (towing)
2.11qts

Transfer Case Fluids

Transfer CaseFluid TypeCapacity
NP207
NP228/229
NP231
NP242

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4.0L

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