RAM RAM TRUCK 2500 User Manual download pdf (Page 5)

Mode selection is made through a switch-bank button on the centre stack, with

the mode illustrated in the full-colour in-cluster display centre. Payload Mode

monitors ride heights on both sides of the vehicle and adjusts for load shifting or

changes in road surfaces; a level load—even under extreme hauling assignments—

is assured.

In the Trailer/Tow Mode, the system lowers the rear suspension approximately

25 mm (1 in.), ensuring a constant and correct alignment between hitch and

trailer tongue; Trailer/Tow Mode ensures a level load and creates a parallel and

even rake from the front of the pickup through the rear of the trailer. Towing

with your Ram Heavy Duty has never been better.

Exclusive to the heavy-duty segment, the Auto-Level Rear Air

Suspension System is available on all models, giving you outstanding

ride comfort and unparalleled control when using your Ram Heavy

Duty under the most rigourous conditions and assignments. Comprised of two

driver-activated operational modes, Payload and Towing, allowing full suspension

travel—maximizing ride and handling while reducing rake. This ingenious air

suspension system redefines capability for today’s pickup owner.

The system operates via a dedicated frame-mounted controller, compressor and

air tank. In Ram 3500 models, the Auto-Level Rear Air Suspension (below, left)

utilizes a single leaf spring which replaces the multi-leaf spring. The air springs

are mounted on top of the solid rear axle; additional links on each side of the rear

axle allow the air springs and leaf springs to work in tandem for load carrying,

with yet further support from the links. Ram 2500 models utilize the same

protocols, but replace the rear coil springs with two air springs (below, right).

Class-eXClusive

auto-level

rear air suspension

Standard Class V tow hitch system provides

8,165-kg (18,000-lb) load capability and

816-kg (1,800-lb) tongue weight capability.

Load massive payloads: the Hotchkiss rear leaf

suspension on Ram 3500 shows no compromise

whatsoever in handling or roll dynamics. All Ram

3500 DRW trucks also include separate auxiliary

leaves that increase your load-carrying capacity.

The available Fifth-Wheel/Gooseneck Prep Group provides hitch

mounting provisions that are fully integrated into the frame and

box floor, and includes an additional 7-pin connector in the bed.

Eight separate crossmembers, hydroformed frame rails and fully boxed

rear rails help add strength and stability, giving Ram Heavy Duty the

support to carry and tow massive loads.

Ram Heavy Duty offers two BorgWarner transfer

cases: a manual part-time shift-on-the-fly system

with a low-range gear and three operating ranges

plus Neutral (standard on ST and Power Wagon

)

and an electronic shift-on-the-fly system that is

operated through a dashboard-mounted shift

selector switch, with a low-range ratio of 2.64:1

(standard on SLT and up).

These workhorses go the distance. Both the 2500 and 3500 frames feature

50,000-psi high-strength steel with mid-frame crossmembers and wide front

rails with the front suspension springs positioned slightly “outboard” for

increased roll stiffness and an improved ride.

Standard on all 4x4 models, the electronic Front Axle Disconnect

system automatically disengages the front drive axle when in 4x2

mode to provide optimal fuel economy.

Capability everywHere

All Ram 2500 models stand apart from the competition with

their beefy five-link coil spring rear suspension with proprietary

multirate coil springs bolstered by heavy-duty fixed-displacement

twin-tube shock absorbers. This system is designed to reduce friction and improve

handling while delivering Ram-tough capacity that doesn’t

back down. You can count on Ram Heavy Duty for

standout performance across the board.

All Ram 2500 and 3500 models feature a robust three-link coil spring front

suspension teamed up with heavy-duty full-displacement twin-tube shock

absorbers. Six massive cam bushings create a force to counteract roll motion,

while large frame-to-axle radius arms ensure optimal front torsional stiffness.

This sophisticated suspension system is designed to keep friction to a minimum,

and deliver road manners and capability at every turn, irrespective of road

surface or degree of load. Count on

exceptional turning ability with

remarkably responsive handling

on every driving surface, even

under the heaviest payloads.

Class-eXClusive

five-link Coil spring rear suspension

sMootH-riding

tHree-link Coil spring front suspension

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RAM RAM TRUCK 2500 User Manual Page 5

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