The Borg-Warner T150 transmission was the three-speed transmission found in 1976 to 1979 Jeeps. It is a good transmission when well maintained.Rated at medium-duty, the T150 is stronger than its compact size may suggest. Though it only holds a candle to the truck style four-speeds' strengths and capabilities, the T150 is frequently retained in CJ Jeeps and  is regarded as the second strongest of all the Jeep three-speeds, second to the Jeep T15.