Engine Type

The Tuxedo Park Mark IV models were powered by a 4-cylinder, 2.2-liter Hurricane engine. This engine produced 75 horsepower and 114 lb-ft of torque. It was paired with a three-speed manual transmission.
Transmission Type

The transmission in the Tuxedo Park Mark IV models was a Borg-Warner T-90 three-speed manual transmission. This transmission had a low range of 2.46:1 and a first gear ratio of 3.34:1.
Transfer Case

The Tuxedo Park Mark IV models came equipped with a Dana 18 transfer case. This transfer case had a low range of 2.43:1 and was capable of sending power to both the front and rear axles.
Front Axle

The front axle in the Tuxedo Park Mark IV models was a Dana 25 axle. This axle had a 4.88:1 gear ratio and a track width of 48 inches.
Rear Axle

The rear axle in the Tuxedo Park Mark IV models was a Dana 44 axle. This axle had a 4.88:1 gear ratio and a track width of 52 inches.
Other Features

In summary, the Tuxedo Park Mark IV models of the CJ-5A and CJ-6A from 1964-1968 featured a 4-cylinder, 2.2-liter Hurricane engine paired with a three-speed manual transmission. They also came equipped with a Dana 18 transfer case capable of sending power to both the front and rear axles. The front axle was a Dana 25 axle, while the rear axle was a Dana 44 axle. These models were designed with luxurious upgrades to appeal to wealthy Jeep customers in the Tuxedo Park

