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
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.
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.
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
Lightforce 230 HTX2 ‘hybrid’ driving lights
With its top-shelf HTX range Lightforce pioneered high-performance hybrid driving lights that combined HID distance globes with spread-beam LED globes. The original 230 HTX driving light was replaced in late 2019 by the HTX2 model.
An understanding of ‘K’ is important when selecting LED lights
Ever since LEDs entered the driving and camping light world we’ve seen manufacturers quoting ‘K’ or ‘Kelvin’ numbers as vital attributes of their products. More ‘K’ isn’t necessarily better.
GENERAL MODS
Keeping the dust out of your camper or van with Respa
We’ve all done it: opened the camper or caravan and discovered a fine coating of dust throughout the interior. No matter how tightly you close doors, vents and windows, some dust always seems to get inside.
A six-wheeler can solve the GVM issue
Adding a third axle to a 4WD ute can increase its gross vehicle mass to 4495kg – car driver’s licence limit – or higher in some cases. The additional axle carries some of the additional weight and, being braked, increases stopping power.
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
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.
Tipper kits for tray backs
The XROADSAUTO Group in the NSW Southern Highlands town of Moss Vale has developed tipper kits to suit tray-back utes and light trucks.
SUSPENSION & BRAKES
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.
Many accidents can be traced back to U-bolts
Like many people, we at OTA have had the broken U-bolt experience. Our trailer U-bolt incident didn’t result in an accident, just temporary axle misalignment, but other people have been less fortunate.
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
Ufixit Tyre Ratchet
The Ufixit mob is best know for their excellent windscreen repair kit that we wouldn’t leave home without. However, another Ufixit product is a wheel nut spanner that takes the effort and risk out of loosening wheel nuts.
Goodyear DuraTrac
After years of trying to get test tyres from Goodyear, we finally managed to track down a set being evaluated by 4WD Off Road Driver Training’s Phil Poulter. He loved them.
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