Sliders, Bar Work and Armour
for your 4 WD.
Bars, Rock Sliders, Brush Bars, Rear Bar, Roll Cage, Bash Plates.
4 wheel drive
like these are essential in protecting off road vehicles. Some could be
considered must haves and others not necessary but very useful to have.
The bonus is really tough protection. The down side is the weight.
Bar work and armour Don't only offer protection it also serves as a place to mount other accessories such as aerials, sand flags, lights, wheels and many other items.
Steel bullbar, brush bars, and rock slider side steps on 79 Series LandCruiser.
is heavier than the other, Steel is strongest but obviously it's also the
Alloy is lighter, cheaper and a lot weaker. Don't be fooled too much
by the weight as for example an alloy bull bar is lighter but not really that
much more lighter compared to steel this does depend on which brands are
compared, so just be aware some alloy bull bars have so many layers or really
think sections to make up for its weakness, but at the end alloy is still
weaker than steel and are close to the same weight (within 10-15 kg).
Steel can be welded by anyone that knows how to weld. Alloy on the other hand
requires specialized welding and equipment which is not as common as steel
welding. It's also more expensive to get done.
Alloy Bull Bar On A Nissan Patrol.
most important protection to any 4wd, these will dramatically increase the
chance of saving occupants lives when or if an animal strike happens.
The factory bumper would just crumble on impact ending a trip, holiday or at
fast highway speeds it could very well end lives.
Steel bull bars offer the best protection, they are heavy but it's worth it.
Alloy bull bars are lighter but at a high speed they won't offer near the same
Deluxe steel bull bar on a Toyota Hilux.
of Bull Bars:
are many different shapes, sizes and proposes.
or Fleet Vehicle Bull Bar:
most common is the 3 loop/hoop commercial bull bar, black in color with hoops
protecting the head lights and a couple of mounting points for aerials and
are a usually a slightly heavier than the commercial bars and offer more
options, color coding and have more style and looks about them.
Bar with one or no loop/hoop:
are more for looks and style however they still offer great protection, the
exposed parts of the 4 wheel drive will be the headlights, so if an animal
strike should happen expect one less headlight.
and Competition Bull Bar:
first one that comes to most people’s minds is the Xrox bar, a light weight
bull bar with maximum approach angle but limited space for lights and aerial whips.
These are great for hardcore 4 wheel driving but protection against animals
strikes is limited compared to the larger steel bull bars.
types of bull bars will have the added option of a winch compatible version, If
you think there is a chance that one day a winch will be fitted to the 4wd,
then a winch compatible bar would be a good idea to get at the start.
Front Coverage Bull Bar:
type of bull bar looks very similar to what the road trains are equipped with. Tuff
bars makes this type, these are hardcore and would withstand multiple strikes.
Items that get mounted to most Bull Bars:
Aerials (including UHF, HF & AM/FM radio), sand flags, spot lights, rock
lights, winches, recovery points, fishing rod sleeves and LED bar lights.
Sliders and Side Steps:
is a big difference between Rock Sliders and Side Steps.
Rock sliders are for literally slide over rocks and protecting the body of the 4
wheel drive from impact also the rock sliders are made so strong that the entire weight of
the vehicle can rest on the rock sliders.
They are usually made to an angle and
protrude out level with the tires, this construction will prevent damage to the
side of the 4wd if it should slide sideway into the side of the track (all it
takes is a deepish rut, happened to myself twice the rock sliders saved my 4wd
from thousands in repairs) rock sliders will also improve the clearance and
ramp over angles.
side step is basically just a step if it's the alloy type don't expect it to
even hold up on sand let along rocks. They bend so easy and offer false sense of
When bogged in mud or sand they hinder recovery, it's just another
flat surface to get stuck and they hang lower than the vehicle body decreasing
clearance and the vehicles ramp over angle.
Side Step vs Rock Sliders:
Rock sliders and underbody bash plates on Toyota Hilux.
are strong heavy gauge side steps available, these are still not as strong as rock
sliders but as long as they are mounted on the chassis rail they will do the
job in most cases. In mud they are a disadvantage as the mud will create
suction due to the flat surface.
Brush bar are usually attached from this type of side step to bull bar, this
combo will offer good protection to the entire front half of the 4wd.
the 4wd from side, rear and even the underside from damage. These are very
handy even driving over rock steps or misjudging the departure angle on steep slopes.
There are different types of rear bars, some that just protect the rear, some
that are just for carrying spare wheels and jerry cans or some that do both.
Hanging a spare wheel off the back is a good idea if the spare is currently
under the 4 wheel drive, if you need to change a tyre on the tracks it can be a
real battle to retrieve the spare if it's underneath, having it hang off the
back makes it very easy to get to.
Most rear bars made to carry a wheel can house two unless the wheels are too big,
the tyre size limit for carrying two would be around 33 inch in diameter, and
any bigger can be a struggle.
Then there is the jerry can wheel combo as well,
there should be enough room for a total of 20l on the back.
Keep in mind that every time the rear tail gate on a Ute or rear barn doors on
a 4wd wagon will need to be opened & closed, the swing away arms on the
rear bar (holding the spare/s) would need to be opened and closed as well.
Other accessories to mount on the rear bar can be a work light which can be on
a telescopic pole for lighting up a camp site or work light in the bush.
UHF and or HF aerials, revering flood lights (for improved visibility), water
tap (if a water tank is on board), spare wheels, spare fuel and even a high
amour for the underside of the 4 wheel drive, this is where the most vulnerable
parts of the vehicle is. Fuel tank, diffs, gear box, transfer case, oil sump and everything
else between, if any of these gets damaged or punched the vehicle could be
disabled, this is why even factory stock 4wds come standard with a small engine
oil sump bash plate, although they don't offer the same strength as aftermarket
3-4mm steel plate they do still help.
After market bash plates come in many different shapes and sizes, some offer
single plates and others offer a complete bash plate kit covering from oil sump
back to the edge of the transfer case.
FJ Cruiser with front bash plate, rock sliders and steel
bull bar bull bar allowing for an increased approach angle.
If 4 wheel driving a lot it would be wise to upgrade the factory bash plate to at least an aftermarket single plate, if doing a bit of hardcore 4 wheel driving then maybe a full kit will suit better.
You will be surprised of the amount of stuff that hits the underside of a 4x4 on the tracks even when being very careful.
There are even bash plates available for the wishbones (the lower control arm on an independent front suspension vehicle).
Differential guards are also available, for some makes and models there is a bolt on or around the original diff, these are very strong. Another type bolt around the axel with U blots and looks like any other bash plate as it hangs directly under the diff, be very careful with these. As I have heard horror stories about these plates spinning around and cutting brake lines.
(I had one myself once and it acted more as a scoop than a bash plate, after going through a mud hole it collected mud until it forced itself around the axel and almost severed the brake lines, in my opinion it's a very poor design).
For full protection on the hard-core tracks, competition off
roaders install roll-cages, these can be internal and even external. They are
all custom made.
Internal cages are very similar to the ones race car drivers use, they create a
steel frame which wraps around the driver keeping him/her safe but the vehicle
is not protected in rollovers.
External roll cages on the other hand are made to wrap around the entire 4
wheel drive keeping the vehicle and the driver safer in the event of a
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