National Post

FIRST DRIVE

Power Wagon’s versatilit­y secret is in its front suspension setup

- Lesley Wimbush Driving. ca

• We’re only 80 kilometres northeast of Las Vegas, but the contrast is startling. Deep in the Mojave Desert, the striated cliffs, twisted rock formations and vast blue sky are the perfect antidote to the tawdry lights of the Vegas strip.

The canyons and great shifting sand dunes provide a terrific playground for evaluating the rock-crawling prowess of the latest Ram Power Wagon. Its name is derived from the iconic Dodge Power Wagon, introduced in 1946 as a weapons carrier and the world’s first 4x4 pickup truck. The badge was resurrecte­d in 2005 for special hardcore off- road versions of the Ram.

While t he i mportant mechanical bits in the 2017 Power Wagon remain unchanged, it returns with a tough new exterior. Where the previous model was festooned with brightwork, the new design eschews chrome in favour of blackedout grille, a powder- coated bumper resistant to chips, rugged wheel arches, and black mirror caps with matching wheels.

The interior gets some exclusive Power Wagon badging, an optional black headliner and tire tread- themed seat inserts. Splashy side graphics give way to twotone paint with black or silver decals.

It certainly looks the part of dedicated rock- crawler. And underneath the macho exterior is an arsenal of offroad equipment that leads Fiat Chrysler to claim the Power Wagon is “the most capable truck in Canada.” This i ncludes complete under- chassis armour, Bilstein mono-tube shocks, fivelink coil rear suspension, electronic disconnect­ing sway bar, electric locking front and rear differenti­als, 33- inch Goodyear off- road tires and a 12,000- pound Warn winch up front.

The Power Wagon boasts 363 millimetre­s (14.3 inches) of clearance, 660 mm ( 26 inches) of wheel travel and 762 mm (30 inches) of water fording. Approach angle is 34 degrees, departure 23.5 and break-over angle 25.5.

It’s powered by the 6.4-litre Hemi V8 engine, with 410 horsepower and 429 poundfeet of torque. ( Unfortunat­ely there’s no Cummins diesel option, because there’s no room behind the Warn winch for an intercoole­r.) The engine is mated to a heavyduty six- speed automatic, and while the driveline lacks the prodigious torque of the Cummins diesel, it’s plenty powerful enough for even the most gruelling climbs.

As any hardcore off - roader knows, the secret to clambering over enormous obstacles and inching up jagged cliffs lies in suspension articulati­on. Simply put, it’s the vehicle’s ability to keep all four wheels in contact with the ground, regardless of how rough the terrain. Many trail enthusiast­s remove the sway bar to get more flex, but the downside is a truck that wallows and rolls when they leave the trail for everyday roads.

Getting to Fire Valley entailed nearly two hours of highway driving, over which the Ram exhibited solid handling with very little roll. Potholes and washboard pavement were nicely absorbed by the suspension damping, with little intrusion into the cabin.

The secret to the Power Wagon’s versatilit­y lies in its “Ram Articulink” front suspension, which uses high-movement joints between the control arm and axle mount for more flexibilit­y and up to 660 mm (26 inches) of vertical wheel movement.

Instead of stopping at the trail head and grabbing the tool box, the Power Wagon lets you disconnect the sway bar from inside the truck by simply pushing a button. The class-exclusive, electronic­ally disconnect­ing “smart bar” allows the front axle to move independen­tly of the frame, which lets the truck flex over l arge obstacles while keeping rubber on the ground. In the rear, the Power Wagon has the same multi- link coil rear suspension used by all Ram 2500 HD trucks. Its advantages over traditiona­l leaf springs include less unsprung mass, better articulati­on and less shuddering over rough surfaces.

Most of the sandy roads required only 4WD. But when our way became strewn with large boulders and deeply rutted tracks, we switched over to 4LO, which allowed us to climb steep hills quite effortless­ly. The truck’s hilldescen­t control system allowed us to set a steady speed downward without touching the throttle or brake.

Fire Valley’s name is derived from the deep red sandstone of its canyons, and erosion has sculpted some unique rock formations which we had to circumnavi­gate or clamber over. The beefy treads of the Goodyear Wrangler tires find purchase on the smooth stone as we inch our way upward. Although there’s the occasional wince- inducing clang of metal hitting rock, the Power Wagon’s underside is generously protected by steel armour. It’s a bit surreal seeing such a long, heavy vehicle undulating and inching upward on such rugged terrain.

Fiat Chrysler says the new Power Wagon is the most capable off- road truck in Canada, a claim that will have Ford F-150 Raptor owners throwing down the gauntlet. While there’s a lot of overlap, the Raptor is a high- speed desert racer, able to launch itself off sand dunes, and the Power Wagon is a brawny rock-crawler with a 685-kilogram ( 1,510- pound) payload and the ability to tow 4,550 kg (10,030 lbs.) of gear to the trail site.

Its 5,445- kg ( 12,000- lb.) electric winch comes in handy for extricatin­g those unfortunat­es who find themselves stuck or, as we found out, upside down. Using a rock face to flip over a caged Toyota 4Runner, the Ram f olks demonstrat­ed how quickly the Power Wagon was able to winch the 4Runner away from the wall and back over onto its wheels.

In addition to the Class 5 receiver hitch, the Ram Power Wagon comes with an optional cargo- view camera for monitoring payload, and a tailgate-mounted rear-view camera.

The 2017 Ram Power Wagon is available in dealership­s now, starting at $58,945.

 ?? LESLEY WIMBUSH / DRIVING. CA ?? The new 2018 Ram Power Wagon 2500 features blacked- out grille, a powder- coated bumper resistant to chips and rugged wheel arches.
LESLEY WIMBUSH / DRIVING. CA The new 2018 Ram Power Wagon 2500 features blacked- out grille, a powder- coated bumper resistant to chips and rugged wheel arches.

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