The Borg-Warner T84 was a transmission used in military Willys MB and Ford GPW in WWII.
The T84 transmission assembly is a three-speed, selective sliding gear-type, with synchromesh second and thirds speed gears. This transmission is sealed for underwater operation.
Gear Ratios
Reverse
3.55
1st Gear
2.67
2nd Gear
1.56
3rd Gear
1.00
Fluid Type and Capacity
Lubricant
SAE 90W
Capacity
1 qt
Avoid GL-5 lubricant, which can cause increased wear on the brass synchros found in this transmission