2500s can be optioned with heavy-duty air suspension in place of the coil springs, which allow for driver-controlled load-leveling with precise, individual adjustment. Front suspension is now courtesy of a 3-link system. The Ram 3500 utilizes a Hotchkiss leaf-spring rear suspension, while 2500s have replaced leaf springs with a 5-link coil spring setup. In 4-wheel-drive models, a front-axle disconnect system can help improve fuel economy. Ram HDs can be ordered with either rear-wheel drive or 4-wheel drive. Diesel Rams employ a Ram Active Air intake system that draws more cool air from the front of the truck for more power in hot temperatures or at high altitude. The high output engine jumps to 400 horsepower and an astonishing 1075 lb-feet of torque. The Cummins is rated at 370 horsepower and 850 lb-feet of torque at just 1,700 rpm. The 6.4L Hemi V8 makes 410 horsepower and 429 lb-feet of torque. A 6-speed HD automatic is also available in the 3500 paired with the high output version of the diesel engine. All gasoline engines are mated to an 8-speed automatic transmission, while a 6-speed automatic handles the additional torque of the diesels.
Across the HD range, buyers can choose between a gasoline-fueled 6.4L Hemi V8 and two iterations of a 6.7L Cummins inline 6-cylinder diesel. Ram's powerful 25 Heavy-Duty trucks return for 2022 with more to like than ever before.
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