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Powertrain
Options Ensure Powerhouse Performance
Dominant
commercial performance is assured with the 2008 Dodge Ram 4500 and 5500
Chassis Cabs as commercial customer specialty needs are met with superior
capability, durability and performance.
“Delivering
premium commercial performance, capability and durability, the all-new
2008 Dodge Ram 4500 and 5500 Chassis Cabs offer the segment’s most
potent powertrain combinations in work trucks that get the job done,”
said Mike Donoughe, Vice President – Body-on-frame Product Team.
Maintaining its reign at the top of the heavy-duty diesel pickup segment,
the standard Cummins engine generates 305 horsepower at 3,000 rpm and
610 lb.-ft. of torque at 1,600 rpm. The legendary engine also delivers
superior fuel economy while ensuring durability and low cost of ownership
for the commercial customer.
Providing superior trailer towing, acceleration, throttle response and
drivability, the 6.7-liter engine is not only more powerful, it's also
cleaner with B5 biodiesel compatibility and a reduction in particulates
and nitrogen oxide (NOx) that comply with the 50-state 2007 heavy-duty
emission standards. As durable as it is powerful, the Cummins 6.7-liter
turbo-diesel engine also has life-to-major overhaul intervals of 350,000
miles.
Completing the dynamic powertrain package, the all-new 2008 Dodge Ram
4500 and 5500 Chassis Cabs offer a six-speed automatic transmission with
Power Take Off (PTO) capability or a six-speed manual transmission with
PTO capability. An available electronic-shift transfer case is offered
and a factory-installed exhaust brake contributes to both safety and superior
brake life.
“Job
Rated” Commercial-grade Chassis with Superior Suspension System
The Dodge
Ram 4500 and 5500 Chassis Cabs lineup of 4x2, 4x4, dual-rear-wheel, regular
and Quad Cab models are “Job-rated,” meaning they are designed,
engineered, tested and built to meet the rigid standards of commercial
truck buyers.
Armed with Dodge Ram Heavy Duty’s superior suspension system, beefed
up even more for commercial applications, Dodge Ram 4500 and 5500 Chassis
Cabs provide expanded capability and durability with a commercial-grade
chassis mated to a one-piece C-channel rear-frame rail (50,000 psi steel).
Two-wheel-drive
and four-wheel-drive models feature a recirculating ball system that provides
precise response and an on-center steering feel through lower internal
friction. Improved power steering lines contribute to the delivery of
precise feel and response for better handling. Featuring solid-beam front
and rear axles, and a five-link, coil-spring front suspension with beam
axle, a front and rear link-type sway bar and heavy-duty tubular shock
absorbers are standard.
The rear suspension on two- and four-wheel-drive models is equipped with
leaf springs and includes standard two-stage springs as part of the spring
design for greater load-carrying capability.
Four cab-axle lengths (60, 84, 108 and 120 inches) are available. Maximum
Gross Vehicle Weight Rating (GVWR) for 4500 models is 16,500. For 5500
models, the maximum GVWR is 19,500 lbs. The Gross Combined Weight Rating
(GCWR) for both 4500 and 5500 models is 26,000 lbs.
The standard diesel exhaust brake system, together with class-leading
brakes and pistons, provides extended brake life and increased driver
control while contributing to enhanced safety performance. Standard four-wheel
disc brakes with anti-lock braking system (ABS) ensure superior safety
and crash-avoidance capability.
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