Ram 2500 vs Isuzu D-Max

What's the difference?

The RAM 2500 Laramie 4x4 is designed primarily as an extreme duty tow vehicle, and in that role it excels. So if you've got something really big to tow like a multi-axle caravan, horse float, boat trailer or other type of trailer up to 7.0 tonnes, you'd be hard pressed to find a more effortless and luxurious way to move it than with one of these jiggers.

There’s a lot to like about the regular D-Max in terms of standard features, driver-assist tech, and all-round driveability – it’s an impressive 4WD with plenty of appeal as a daily driver.

And the Blade is even better – but not by a lot.

Walkinshaw’s work on the Blade has bolstered that appeal with conversion work, engineering upgrades and fitment of accessories and all of those elements are the kind of sensible changes an experienced 4WDer would usually make to their own stock-standard vehicle via the aftermarket.

And that’s a crucial point with these type of factory-modded vehicles: some people prefer to do the research, sourcing, purchasing and even the fitment of mods and accessories themselves rather than buy a ready-made adventure machine.

However, there’s no denying the convenience of a factory-backed and -accessorised 4WD ute or wagon, and Isuzu and Walkinshaw have proven, in the same way that Nissan and Premcar have, that these kinds of collaborations can yield positive results.

Do you need a Blade? No, and an LS-U+ might better suit your lifestyle. But do you want a Blade? Many a D-Max fan would say “Yes!” without hesitation.

With a granite-crushing 3577kg kerb weight (by comparison Ford's top-shelf Ranger Wildtrak dual cab ute is 'only' 2250kg) the RAM 2500's architecture is tailor-made for heavy towing with a massive ladder frame chassis and expansive 3797mm wheelbase (Ranger 3220mm) providing rock-solid towing stability.

Front and rear suspension is via multi-link coil-sprung live axles (LSD rear), with four wheel disc brakes inside 18 x 8.0-inch polished alloy wheels and Michelin LT265/70R18E all-purpose tyres. Plus there's a full size spare.

ASV prefers to use the word 're-manufacture' rather than 'conversion' when describing its extensive body-off-frame RHD engineering process. We can vouch for that, having inspected the company's ISO quality-certified Melbourne production line, which turns out about 40 vehicles a month and employs 28 full-time staff in a dedicated factory right next door to HSV in Clayton. The end result is OEM standards in parts supply, engineering quality, standard of finish and driving performance.

The Blade’s distinctive look builds on the D-Max’s most recent refresh treatment, in which the ute received new headlights, a bigger grille, redesigned wheels, and three-tier LED tail-lights.

In terms of dimensions, the Blade is 5308mm long (with a 3125mm wheelbase), 1810mm high and 1910mm wide (excluding wing mirrors).

In comparison, the LS-U+ is 5285mm long (with a 3125mm wheelbase), 1790mm high and 1870mm wide (excluding wing mirrors).

So, the Blade is longer, taller, wider (with wider wheels and wheel tracks, and 23mm-wider wheel-arch flares), beefier and more imposing than its standard stablemates.

Also, at a listed kerb weight of 2204kg, this ute is 89kg heavier than the LS-U+.

Exterior Blade extras (all of these are satin black) include front grille with ‘ISUZU’ lettering (and integrated, tinted 112-watt lightbar), front bumper cladding, fender flares with integrated air curtains, ‘BLADE’ lettering across the tailgate, tailgate badging, decals on the front bar, bonnet, doors and tailgate, tubular sidesteps, and a one-piece extended sports bar with integrated stop lamp.

It also gets widened mud flaps, an individually numbered 'BLADE' identification plaque in engine bay, 'Basalt Black' tailgate and door handles and door mirrors.

Inside there are ‘BLADE’ embroidered head rests, 'BLADE’ embroidered floor mats, 'BLADE’ embossed scuff plates, and an individually numbered 'BLADE' identification plaque on the transmission selector surround.

Everything looks good, except...

This vehicle would be a whole lot more appealing without the cheesy katana-style stickers everywhere and the huge ‘BLADE’ emblazoned on its rear end. The ‘Blade’ mentions on the scuff plates and on the front-seats head-rests are about all the decoration it should have.

The decals are shaped to bring to mind the blades of samurai swords I guess, but they look more like ice hockey sticks to me – and they shouldn’t be there.

This ute would benefit from more of a subtle look – it’s chunkier-than-thou appearance speaks for itself, so there’s no need for garish tarting up of any sort.

The RAM 2500's payload capacity of 913kg might seem conservative compared to smaller dual cab utes with one-tonne payloads, but drill down further into its huge tow ratings and that 913kg (say 5-6 occupants and all their gear) looks mighty impressive.

Why? Because on a 50mm ball it can tow up to 3500kg with a full payload (7990kg gross combined mass), on a 70mm ball it can tow up to 4500kg with a full payload (8990kg GCM) and with a gooseneck and ring connection (aka pintle) it can tow up to 6989kg – and still with a full payload. That's a whopping 11,479kg GCM or just under 11.5 tonnes. Try doing that with a one-tonne ute!

The heart of this power giant is a Cummins 6.7 litre inline six cylinder turbo-diesel with 276kW at 2800rpm and a towering 1084Nm of torque at only 1600rpm.

The big cargo box, which is protected by a spray-in bedliner, is 511mm deep with a load floor that's 1939mm long and 1687mm wide with 1295mm between the wheel arches. That means it can take a standard 1160mm x 1160mm pallet, or a couple of dirt bikes with the tailgate up and heaps of room left for your gear and tools.

The cabin offers numerous storage options with bottle holders and twin storage pockets in the front doors, a huge centre console (which pivots into an upright position to serve as the centre seat backrest when required) with internal storage and three more cup/bottle holders, twin glove box compartments, rear door storage pockets, a central floor-mounted twin bottle holder and deep in-floor storage bins hidden under the carpet mats on either side. The rear seat can also be quickly reconfigured into a convenient flat-floored cargo area when required.

Isuzu could never be accused of ever sacrificing substance for style in the D-Max and that remains true in the Blade. 

Not a lot separates the LS-U+ and Blade in terms of functionality or comfort because they share essentially the same interior with only a few differences.

The interior here is at heart a workhorse’s cabin with no fancy-schmancy elements that might spoil this ute’s primary purpose: work … and a fair dose of play, of course.

The latest round of D-Max upgrades brought with it enhanced interior materials, a new 9.0-inch touchscreen multimedia system as well as upgraded functionality across all dash tech, and more charging spots for smart devices.

And the Blade treatment doesn’t add anything other than the aforementioned style tweaks to that – which is fine.

The cabin has a pleasantly familiar feel about it and it’s an easy space in which to swiftly become comfortable and to figure out where all controls are (on-screen and real switches, buttons and dials) and how to use them. 

The interior is adequately spacious with nicely supportive seats upfront and a reasonably comfortable bench-style pew for the three people at the rear. 

The Blade has leather-accented upholstery, but there are expanses of durable plastic surfaces to cope with real-life mess.

Charging options are numerous – a mix of USB-A, USB-C and 12V upfront, and USB-A for the second row – and storage places include recesses for your everyday carry gear, a suitably deep centre console, as well as dual cupholders upfront and cupholders in the fold-down armrest, and bottle holders in the doors.

Back-row passengers get USB ports, directional air-con vents and shallow under-seat storage.

The tub is 1570mm long (at floor level), 1530mm wide (1122mm between the wheel-arches) and 490mm deep. It is a double-walled tub, with an under-rail tub liner, two cargo tie-down points, and it has tailgate assist.

Tub options for D-Max owners include a tonneau or roller cover (which offers at least some degree of security from thieves, and protection from rain, mud, snow etc), or an Isuzu or aftermarket canopy, although a canopy impacts the versatility of the load space because once it’s an enclosed area it makes it more difficult to carry long, awkward and/or large loads in the tub.

The D-Max Blade has a national drive-away price of $76,990 ($78,900 RRP) at the time of writing (early Feb 2025), so it’s now the most expensive D-Max available, costing about $9000 more than the line-up’s former big Kohuna, the X-Terrain. 

It’s also about $15,000 more than the mid-range LS-U+ on which it’s based.

Our test vehicle had a few extras onboard including the no-cost option premium paint (Sunstone Orange), a tow bar tongue ($215.05), 12-pin plug ($393.25), and an electronic brake controller ($896.05). Those extras fitted at the time of sale attract stamp duty of $80.85. 

Price as tested, according to Isuzu, is $78,687.85.

Standard D-Max features include a 9.0-inch touchscreen multimedia system display (with wired and wireless Apple CarPlay and Android Auto), eight-way power-adjustable driver’s seat, leather-accented upholstery, heated front seats, reversing camera with dynamic guidelines, a rear-diff lock, Rough Terrain mode and more.

Blade extras of substance include lifted suspension (finished in Isuzu red), 3mm-think steel bash plate underbody protection (in Isuzu red), eight-tonne load rated recovery points with cross-bracing, (finished in Isuzu red), and satin black 17x8.5-inch +28 flow-formed alloy wheels with 275/65R17 Goodyear Wrangler Duratrac RT all-terrain tyres.

It also gets a stack of design-related extras which will get a mention in the Design section (below).

Exterior paint choices include 'Moonstone White' pearl, 'Basalt Black' mica, 'Granite Grey' mica or 'Sunstone Orange' mica.

The heart of this power giant is a Cummins 6.7 litre inline six cylinder turbo-diesel with 276kW at 2800rpm and - most importantly in this context – a towering 1084Nm of torque at only 1600rpm. It's also equipped with a very effective exhaust brake with a choice of settings.

Chrysler's equally robust and well-proven (68RFE) six-speed automatic transmission with driver-adaptive shifting is purpose-built for extreme duty. The 4x4 drivetrain features a dual-range Borg Warner transfer case with electronic shift-on-the-fly control and a 2.64:1 low range reduction, which with the 3.42:1 final drive results in a 29.2:1 crawl ratio. Ideal for towing a heavy load out of a rugged worksite or a campground turned boggy by overnight rain.

The D-Max Blade has the D-Max line-up’s 3.0-litre four-cylinder turbo-diesel engine – producing 140kW at 3600rpm and 450Nm from 1600 to 2600rpm – and it’s matched to a six-speed auto. 

Just to be clear: the Blade does not have any power or torque advantages over the standard D-Max.

This engine and auto combination form part of a proven powertrain and while this ute is sluggish when accelerating and it’s not the most dynamic vehicle to drive, the D-Max has a real tractability about it that negates most other flaws. 

It has part-time 4WD, with high- and low-range. Driver-assist tech, such as rough terrain mode, has been tweaked with the aim of making Isuzu 4WDs perform off-road even better than before.

We conducted two tests based on fuel bowser and trip meter readings. The first, which mostly comprised heavy towing, resulted in 20.14L/100km compared to 16.6 on its instrument display. The second was a mix of city, suburban and highway driving with no towing which returned 15.08 litres/100km compared to 14.0 displayed.

Official fuel consumption for this D-Max is 8.0L/100km on a combined cycle. 

Actual fuel consumption on this test, from pump to pump, was 10.6L/100km for the D-Max. 

The D-Max has a 76-litre fuel tank so, going by those fuel consumption figures, you should be able to get a driving range of about 717km from a full tank.

The strong whiff of leather is a nice way to start each journey. The full-length side steps and grab handles are required for every climb in and out of the elevated cabin which provides a commanding view of the world, even though the outer edges of its vast bonnet and front mudguards disappear from view.

The front seats are wide and comfortable with good lateral support and rear seat passengers have generous head, shoulder and legroom as you would expect. Although it feels huge when you first climb aboard, the RAM starts to shrink around you the more you drive it, aided by front and rear parking sensors and a reversing camera for tight parking situations (which is most of the time).

Its height of 1974mm (Ranger 1848mm) will still clear most undercover car parks (usually 2100mm limit) and its 2009mm width is only 150mm wider than a Ranger, so it will also fit within most car parking spaces. The biggest parking handicap is its oil tanker-like 6030mm length which is 675mm longer than the Ranger, so you need plenty of room for reversing.

On the highway it has a remarkably quiet cabin environment thanks to substantial ASV-added sound insulation, low wind noise and minimal tyre roar.

Ride quality when empty is generally good, although you do notice the firmness of the heavy duty spring rates over larger bumps. Acceleration is spirited, too, with an unbridled 1084Nm shoving you in the back and the steering is nicely weighted and relatively direct for an old-school steering box set-up.

The quartet of disc brakes, though, do not have the bite relative to pedal effort one might expect. ASV engineers claim it's the result of pad compounds which have to withstand the heat of up to 7.0 tonne towing loads, so they tend to be relatively hard.

On the highway it has a remarkably quiet cabin environment thanks to substantial ASV-added sound insulation, low wind noise and minimal tyre roar. At 100km/h with no payload, the 6.7 litre Cummins barely ticked over at 1400rpm and that hardly changed when we hooked up a dual axle New Age Caravan with a 3270kg tare weight.

Given that was less than half of its peak towing capacity, the big RAM barely noticed it was there. The engine's massive 1084Nm of torque at only 1600rpm was most impressive on long gradual climbs, allowing the truck and caravan combo to squash each hill in top gear with minimal throttle.

Each time you ease off the accelerator, too, the exhaust brake provides more than enough retardation (and Kenworth sound effects) to ensure you rarely need to push the brake pedal. And when you do, the electric trailer brake control provides powerful and sure-footed stopping power. The door mirrors were also wide enough to see along each side of the van and approaching rear traffic.

The D-Max has never been a stand-out performer on-road in the ute segment, but it’s never been atrocious either.

The engine and auto combination yield a solid drivability rather than any liveliness, which works fine in this ute package.

Suffice to say, the D-Max is consistently middle of the pack when it comes to ride and handling or refinement comparisons, but again that suits this ute package. 

Besides, the D-Max is a body-on-frame ute with leaf spring rear suspension, so it can’t be expected to produce sportscar-like driving qualities, though the most recent upgrades to the D-Max did improve the steering and driver-assist tech.

But then came the Blade project, which wasn’t about improving the ute’s around-town driveability: Isuzu brought in the Walkinshaw Automotive Group, one of Australia’s leading automotive engineering firms, to make a version of the D-Max that was even better at off-roading than the standard unmodified D-Max.

Boiling down thousands of kilometres and man-hours of Walkinshaw’s work on the Blade into the most salient points for this yarn does not accurately reflect the effort of those involved in the years-long process … but here goes anyway: Walkinshaw has designed, engineered and remanufactured some of Australia’s most iconic nameplates, and, while the Blade reworking doesn’t introduce any new mechanical or driver-assist tech set-ups to the D-Max package, the introduction of new all-terrain tyres, wider wheel track and Aussie-tuned suspension (including Monroe 35mm MTV twin-tube dampers with lifted spring seats) has added a welcome measure of composure to this ute’s on-road behaviour.

And Isuzu big wigs must be feeling a bit chuffed at this point in time because Walkinshaw’s off-road mods have produced real results where they count most: off-road.

The standard D-Max in LS-U+ guise is an impressive 4WD ute, but the Blade version is a touch better on a variety of terrain for a number of reasons.

For starters, the Blade’s Walkinshaw-developed suspension set-up, with those 35mm twin-tube dampers in the mix, yields a more agreeable drive, with more comfort and better chassis control than a regular D-Max on fast dirt tracks and corrugated gravel roads. It manages to subdue most of the lumps and bumps you’re bound to drive over on your way to a beach- or bush-camping destination.

The Blade’s wheel track – at 1602mm, 32mm wider than the LS-U+’s 1570mm – gives this ute a slightly more planted posture than its standard stablemate for improved stability and handling.

And while the Blade’s tyres aren’t gung-ho mud-terrains or something similar, its 275/65R17 Goodyear Wrangler Duratrac RT all-terrain tyres do work sufficiently well on-road and off.

For low-range 4WDing, the Blade has all of the D-Max good stuff – including a tractable engine with plenty of low-down torque and a recalibrated off-road traction control (part of the most recent D-Max upgrades) – but its ground clearance (244mm vs the LS-U+’s 240mm) and off-road angles (29.2° approach, 19.2° departure and 25.2° breakover vs the LS-U+’s 30.5°, 19.0°, and 23.8°) don’t represent as much of an improvement over its stablemate as you’d expect in a vehicle touted by Isuzu as “an off-road ute without compromise” and “an unparalleled combination of off-road performance and rugged reliability”.

The Blade feels vulnerable to underbody knocks from rocks and the like, but it has 3mm-thick steel bash plate protection so there’s no need to lose any sleep over a few ‘rubbing dirt’ moments.

Its tubular sidesteps at least seem hardier than the standard D-Max’s sidesteps and seem able to cop knocks from rocks without crumpling.

If there’s any need for a vehicle recovery, the Blade has eight-tonne load-rated recovery points (with bracing between chassis rails for torsional rigidity) to work with.

Also, if you’re thinking about using your Blade as a touring platform, at a listed kerb weight of 2204kg, it is 89kg heavier than the LS-U+, and its payload is 896kg (down form the LS-U+’s 990kg). GVM is 3100kg, GCM is 6000kg.

Towing capacities remain at 750kg (unbraked) and 3500kg (braked).

The D-Max has the maximum five-star ANCAP safety rating.

As standard, it has auto emergency braking (AEB), eight airbags (dual front, curtain, side, driver's knee and far side) and a comprehensive suite of driver-assist tech including forward collision warning, adaptive cruise control, lane departure warning, a tyre-pressure monitoring system and a raft of other driver-assist tech.

Isuzu's Intelligent Driver Assistance System (IDAS) also includes AEB with turn assist, 'Intelligent' adaptive cruise control, traffic sign recognition, lane departure prevention, lane keeping assist, emergency lane keeping, blind spot monitoring, rear cross-traffic alert, rear cross-traffic brake, digital reversing camera and trailer sway control.

RAM Trucks Australia provides a three year/100,000km warranty plus national Roadside Assistance for the duration of the warranty period.

Service intervals of six months/12,000km whichever comes first. ASV has a 30-strong Australian dealership network providing full sales and after-sales service.

The D-Max has a six-year/150,000km warranty and seven years of roadside assistance when you have your D-Max always serviced at a participating Isuzu ute dealer. That warranty is okay in terms of years, but unlimited kilometres would be a welcome sweetener.

Service intervals are scheduled for every 12 months or 15,000km, whichever occurs soonest.

Capped-price servicing covers the first five scheduled services for 24MY and later vehicle models (up to five years/75,000km - whichever occurs first) – at a flat price of $449 for each service.