4WD MODIFICATIONS & ACCESSORIES
Buying the right 4WD is critical and in this Buyers Guide, we highlight the strengths and weaknesses of new and used wagons, utes and heavy duty off-road vehicles. Also in the Buyers Guide are motorhomes and campervans. Many of the vehicles tested have video reports to let you see how they perform on and off road; and some also include tow tests. There are also suggestions for desirable bush modifications.
LATEST ARTICLES
BARS, WINCHES & SIDERAILS
Buying a Winch
Many people see a winch as a means of increasing the off-road ability of a 4WD. It’s an impression that’s easily gained by seeing how off-road competition blokes and gals go about conquering seemingly impossible obstacles, but that’s not how you should look at a recreational vehicle winch.
Front and Rear Bars
You only have to see how serious 4WDs are dressed up for bush work to appreciate that out-of-the-box 4WDs are underdone for Outback travel and off-road driving. The most obvious addition that most people fit is a bull bar.
DIY WORKSHOP
Installing a diesel camper heater
Chinese-made camper heaters are shameless copies of European-designed units and they’re available at a fraction of the price. Our test unit cost $340, rather than around five times that for the genuine article. Performance so far is excellent.
How to fit extended diff breathers
Fitting this kit was easy enough, but we used different clamps for ease of fitment and for simpler bush repair.
ELECTRICS & LIGHTS
Lazer Linear-18 Elite light bar
The Lazer Linear series is designed specifically for unobtrusive, low-profile installation on bumpers, ‘roo bars and roof racks. The Linear-18 comes in Standard and Elite power levels and we tested the Elite version.
Stedi ST4K 80-LED double-row light bar
We were very impressed with the ST4K light bars we’ve tested previously – 32 LED and 52 LED – models, so we had high expectations for the 80-LED model. We mounted it on our 75 Series roof rack and went bush.
GENERAL MODS
Weight distribution calculations
Steering dampers with a difference from Tough Dog
Many 4WDs come with steering dampers that reduce unwanted reactions from the front wheels through the steering wheel. We checked out two Tough Dog units that differ from most others.
COMMUNICATIONS & NAVIGATION
Uniden 600-series UHF hand-held radios
Uniden’s new UH600 radio series are claimed to be built for Australia’s rugged conditions, offering high grade performance in a lightweight, compact design.
Narva wireless mobile device charger range
This specialist automotive electrical and electronics company’s range of wireless chargers can charge a compatible device without the need to plug in a power cable.
POWERTRAIN
iDrive
This device alters accelerator response without touching fuel injection computer ‘mapping’.
Don’t ‘sock’ your snorkel
There’s a current craze for fitting a plain or oily-foam ‘sock’ over a snorkel. It may seem like a good way of keeping your air cleaner element dust-free, but it isn’t.
STORAGE
Roof rack access ‘doorstep’
SUV Doorstop is a small, foldable step that allows safe and easy access to roof racks and roof-mounted solar panels.
Clearview fridge slide enhancements.
These three fridge-slide enhancements from Clearview can make bush camping easier.There’s a cable tidy, an extension tray and a full slide-out Pantry.
SUSPENSION & BRAKES
Tough Dog Adjustable shock absorber test
Most 4WDs spend their time relatively lightly loaded around town and fully loaded on bush trips. Trying to make a fixed-setting shock absorber handle both damping tasks isn’t easy: hence, the adjustable shock absorber.
Progressive rate bump stops
Supple suspension gives great wheel travel and a comfortable ride, but load and road conditions can sometimes cause ‘bottoming’. There’s a procedure to control this undesirable situation.
TECH TORQUE
Atkinson and Miller cyle engines
Electrification doesn’t mean the end of the internal combustion engine, but tomorrow’s passenger car engines are being designed primarily for hybrid-electric vehicles and as range extenders.
All leaf springs are not the same
The leaf spring has been with us since horse-drawn wagon passengers demanded better ride quality and the long-serving leaf spring is still the principal springing medium for the rear ends of light commercial 4WDs.
TRACTION AIDS
LOKKA auto-locking differential
LOKKA is an automatic differential locker that can be fitted to front, rear or both differentials. This auto-locking diff centre has been manufactured in Australia since the 1990s.
Fitting the right after-market LSDs and diff locks
In the accompanying story Differentials Explained we’ve looked at the different differentials that are popular in the 4WD world and now we’ll look at their selection and use.
TYRES & WHEELS
Toyo Open Country A/T II tyres on test
We haven’t evaluated a set of Toyo Open Country tyres for about 15 years, so it’s long overdue.
Kumho MT71 M/T tyre range on test
Kumho Tyre Australia has announced the launch of a new mud terrain tyre for the 4WD Ute and SUV market. The new MT71 replaces the previous two Kumho M/T tyres: the KL71 and the MT51.
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