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4WD Modifications - Suspension and Brakes

Very few standard suspensions are suitable for bush work; we guide you through the maze of aftermarket suspension choices. We also cover the important topic of brakes.

25 SUSPENSION MODIFICATIONS
25 SUSPENSION MODIFICATIONS
A guide to the most popular suspension modifications.

After bar work and roof racks the most common modification made to a 4WD is done underneath – to the suspension. We’ve separated different suspension types and listed the ideal changes needed for each type.

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ARB BYPASS TECHNOLOGY SHOCK ABSORBERS
ARB BYPASS TECHNOLOGY SHOCK ABSORBERS
Race-type damping quality for popular 4WDs.

Many of us are familiar with the design of off-road-race shock absorbers, with their external ‘bypass’ tubes. ARB’s BP-51 bypass dampers use the same principle, but with internal bypass technology. They’re vehicle-specific and new models are being added periodically.

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BILSTEIN SHOCK ABSORBER LONG-TERM TEST
BILSTEIN SHOCK ABSORBER LONG-TERM TEST
We haven't been able to kill these dampers

We fitted a test set of Bilsteins to the Outback Travel Australia LandCruiser 75 Series exactly 85,000km ago. Since then they’ve done five major bush trips at a full 3.5-tonnes GVM on some of the worst roads and tracks in the Outback.

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BILSTEIN SHOCK ABSORBERS FOR TRAILERS
BILSTEIN SHOCK ABSORBERS FOR TRAILERS
These famous dampers are now specified for camper trailers and caravans.

Bilstein shock absorbers are well known for their high-performance damping abilities on 4WDs and there's a revalved range to suit single and dual mounting on caravans and camper trailers.

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DISC BRAKE KITS FOR UTE REAR AXLES FROM PEDDERS
DISC BRAKE KITS FOR UTE REAR AXLES FROM PEDDERS
Greatly improved braking for loaded utes.

Heavily loaded utes are common sights on bush roads and tracks. Braking power could do with an improvement we’ve reckoned for some time and Pedders agrees with us.

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DOBINSONS MONOTUBE DAMPER RANGE
DOBINSONS MONOTUBE DAMPER RANGE
Not yet a household suspension name, but homegrown and high-tech nonetheless.

Dobinsons has a range of MRR monotube remote reservoir shock absorbers. All are re-buildable and re-valvable, and are direct bolt-in replacement units.

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KONI SHOCK ABSORBER EVALUATION
KONI SHOCK ABSORBER EVALUATION
Not our normal test procedure and with mixed results

We asked the Australian Koni distributors, Toperformance Products, for a set of dampers to test on our LandCruiser 75 Series, but they refused, so we’ve used OTA Team vehicles for the purpose.

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4WD SUSPENSION RANGE FROM OPPOSITE LOCK
4WD SUSPENSION RANGE FROM OPPOSITE LOCK
Aussie-made springs and a choice of two damper types.

The Opposite Lock Group has a range of premium quality suspension kits, with a warranty period of three years or 60,000 kilometres.

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SUSPENSIONS - WHY MUCK AROUND WITH THEM
SUSPENSIONS - WHY MUCK AROUND WITH THEM
A 4WD novice may not see the need, but experienced off roaders know better

Apart from air-suspended 4WD wagons we can’t think of any stock 4WD that won’t benefit from suspension modifications that can improve load carrying capacity, off-road ability, ride quality and handling

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TJM FOX SHOCKS
TJM FOX SHOCKS
TJM has entered the monotube arena

At Outback Travel Australia we’re big fans of monotube shock absorbers. All our testing over the past 20 years shows that they have better bump and rebound control than twin-tube types, run cooler and fade less.

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