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www.landscapeirrigation.com August 2014 Landscape and Irrigation 45 The 2014 Ram Heavy Duty line features the following capa- bilities: * Towing – Up to 30,000 pounds with Ram 3500. * Towing – Up to 17,970 pounds with Ram 2500. * Payload – Up to 7,320 pounds with Ram 3500. * Power – 850 lb.-ft. of torque with 6.7-liter Cummins. * Power – 410 horsepower and 429 lb.-ft. of torque with all- new 6.4-liter HEMI V-8. * Capacity – Gross Combined Weight Rating (GCWR) of 37,600 pounds with Ram 3500. Ram 2500 and 3500 Heavy Duty trucks also add new innova- tion, including an all-new, 5-link coil suspension with optional air suspension on Ram 2500 and a supplemental air bag suspension option on Ram 3500. The 5-link coil design provides better articulation over obstacles than a leaf spring system, and the robust coil springs are more than up to the task of handling the loads required of a Heavy Duty Ram 2500 — up to 17,970 pounds for towing. The 2014 Ram 2500 also will offer a rear air suspension system. An air bag replaces the coil spring, much like the Ram 1500. Another benefit to the new air suspension design is the load-leveling capability, which automatically detects load on the rear suspension from a trailer or payload. The air pressure increases until the vehicle reaches normal ride height, leveling the truck, improving stability and loaded ride. The Ram 3500 will continue to feature the rear Hotchkiss leaf spring system, but will now offer a supplemental air sus- pension system on SRW and DRW applications. By adding supplemental air bags to the rear suspension, Ram engineers were able to soften the leaf springs, allowing for more unladed suspension movement. When a high-load capacity condition exists, the air suspension automatically fills the rear air bags to level the truck to improve stability and ride quality — even pulling a 30,000-lb. load. In the front, the Ram Heavy Duty line features an advanced three-link front suspension to ensure roll stiffness. Greater roll stiffness, also known as body roll, is an important characteristic in taller vehicles and especially trucks with heavy payloads. Roll stiffness is measured by the amount the truck's body tips side-to-side, inde- pendently of the wheels, during cornering. For 2014 Ram 2500 offers gooseneck (center- positioned ball in the bed) or fifth wheel capability. Additionally, Ram features an in-box connection junc- tion, and a standard Class 4 and 5 receiver hitch with a four and seven pin connector on the bumper. Ram offers two different dual alternator systems on the 2014 Ram Heavy Duty, providing additional power for higher electrical loads from commercial vehicle upfits and accessories. New for 2014, Ram Heavy Duty models, equipped with the Cummins 6.7-liter diesel engine, will offer dual 220-amp alter- nators (440 amps). Both the Ram 2500 and 3500 equipped with the new 6.4-liter HEMI V-8 gas engine also will offer a dual-alternator system that combines 220- and 160-amp units for 380-amps of total output. Although the Ram Power Wagon benefits from the new 5-link rear suspension, it also receives a unique front suspension system. The modified front 3-link system incorporates high- movement links, allowing for additional flexibility and axle articu- lation. The 2014 Power Wagon also is powered by the 6.4-liter HEMI V-8 engine. Engineered to deliver capability, durability and bang for the buck, the largest displacement V-8 in its class provides a worthy gas-powered option to the segment's overall standard-bearer — the 6.7-liter Cummins Turbo Diesel. The new 16-valve engine boasts 410 horsepower at 5,600 rpm and a peak torque rating of 429 lb.-ft. at 4,000 rpm. The 66RFE six-speed automatic transmission is standard with the new 6.4-liter HEMI. Other engine options include the 5.7-liter HEMI V-8, stan- dard equipment for the Ram 2500 and 3500 (SRW). The engine produces 383 horsepower at 5,600 rpm and generates peak torque of 400 lb.-ft. of torque at 4,000 rpm. The 5.7-liter HEMI V-8 is mated to a 66RFE six-speed automatic transmission. The 6.7-liter Cummins Turbo Diesel I-6 is available in three versions: * The first version is paired with Ram's six-speed manual transmission. This combination delivers 350 horsepower at 2,800 rpm and 660 lb.-ft. of torque at 1,400 rpm. * The second option matches the Cummins to the 68RFE six-speed automatic transmission. The diesel engine cranks out 370 horsepower at 2,800 rpm with 800 lb.-ft. of torque at 1,600 rpm. * Finally, the 6.7-liter Cummins High-Output Turbo Diesel I-6 for Ram 3500 is paired with the Aisin six-speed automatic transmission (AS69RC). In addition to 385 horsepower at 2,800 rpm, the most powerful Cummins generates torque of 850 lb.-ft. at 1,700 rpm. 2014 Dodge Ram Heavy Duty