Final answer:
The crawl ratio for the Wrangler's Rock-Trac four-wheel-drive system with manual transmission is 84.2:1, reflecting its excellent torque maximization and control for off-road driving. The correct answer is B) 84.2:1.
Step-by-step explanation:
The crawl ratio of a vehicle is an important factor for off-road capabilities, particularly in rough terrain where slow, steady movement is necessary. It is the ratio of the rotational speed of the engine's output to the rotational speed of the wheels. For the Jeep Wrangler equipped with the Rock-Trac four-wheel-drive system and a manual transmission, the crawl ratio is 84.2:1. This high crawl ratio represents the vehicle's ability to maximize torque while maintaining low speeds, ensuring precision and control during off-roading adventures.
A higher crawl ratio indicates better low-speed crawling capability, allowing the vehicle to navigate steep inclines and obstacles with greater ease. The correct answer is B) 84.2:1.