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Terrafirma Suspension Kits

Thursday, March 17th, 2011

A comprehensive range of the Terrafirma All Terrain and Pro Sport shock absorber suspension kits are now available from the Electric Winch Shop.

A great all rounder, the Terrafirma All Terrain shock is a favourite in any conditions and any environment. From the construction site to the motorway, running light or fully loaded, simply replacing tired old shocks or heading off-road, you can’t go wrong.

Terrafirma All Terrain Shocks:-

A firm favourite and great all rounder, the Terrafirma All Terrain shock is great choice for any condition and any environment. From the construction site to the motorway, running light or fully loaded, simply replacing tired old shocks or heading off-road, you can’t go wrong with this exceptional shock absorber.

All Terrain shock kit

The All Terrain shocks are a durable twin tube design which allows for a large volume of oil for cooler internals and improved protection of working parts. Low pressure nitrogen keeps the oil under pressure which prevents it from foaming and creating cavitation which eventually results in heat build up and shock fade.

Terrafirma All Terrain shocks are built with the largest possible fully welded mounting pins and rubber bushes for maximum strength giving added durability. This makes them tough enough to handle the punishment of recreational off-roading yet refined to provide a comfortable, well balanced and controlled ride on road.

The following diagram explains the design and construction of the Terrafirma All Terrain shocks.

shockdiagram terrafirma

Features include:-
35mm internal bore and piston, 15mm double chromed shaft, Nitrogen charged, High temperature fluid, 2.5mm outer shock tube wall thickness, 14mm mounting pins.

Finished with a high quality deep silver paint to resist corrosion caused by off road conditions for long lasting good looks and including the smart Terrafirma All Terrain shock absorber logo. Terrafirma All Terrain shocks are the perfect replacement for existing shocks and yet can also accommodate up to 2” (50mm) of lift using Terrafirma coil springs. 2” longer All Terrain shocks are also available for Series 2 Discoverys.

Terrafirma Pro Sport Shocks:-

The Pro Sport shocks are the most popular shock for off-roading Land Rover owners, the Terrafirma Pro Sport is a true +2” (50mm) longer than standard allowing much greater wheel travel for your vehicle. The remarkable advantages become obvious when driving off-road, these shocks are built with hard core use in mind. The Terrafirma Pro Sport Shocks are fitted with velocity sensitive valving which means that the shock will automatically adjust its internal damping to suit driving conditions, the harder you punish them the better they work! When it comes to the drive home you’ll really notice the superior ride quality and handling.

The Terrafirma Pro Sport shocks are a super tough twin tube design with a massive 20mm shaft and 40mm piston. Low pressure nitrogen keeps the oil under pressure that prevents it from cavitating which causes shock fade, something the Pro Sport is never troubled with due to it’s superior design.

Terrafirma Pro Sport shock kit

Once again, as with the All terrain Terrafirm shocks the Pro Sport shocks are built with the largest possible fully welded mounting pins and rubber bushes for maximum strength and durability. To look at, these shocks are striking and stylish, finished with a high quality deep silver paint to resist corrosion and including the smart Terrafirma Pro Sport shock absorber logo. Another feature the Pro Sport shock has over the All terrain shock is a bright blue flexible polyurethane gaiter which protects the double chromed shaft from potential stone damage.

The Terrafirma Pro Sport shocks are a big step up in performance and quality and are perfect when combined with Terrafirma coil springs to give a 2” (50mm) with a corresponding increase in wheel travel.

Coil Springs:-

So, you’ve decided which shocks are the most suitable for you, now you need to decide what coil springs best suit your requirements.

It isn’t as daunting as it may seem. The Electric Winch Shop have the Terrafirma kits listed under the three recommended catogories of Light duty, Medium duty & Heavy duty kits. This essentially is based around how much equipment you have on your vehicle.

Vehicle loads

Light Loads - Vehicles with no additional equipment fitted.
Medium Loads - Vehicles fitted with some additional weight such as a roof rack and winch and bumper.
Heavy Loads - Vehicles fitted with significant off-road or expedition equipment such as a heavy winch and bumper, loaded roof rack, storage equiment, rock sliders and spare wheel carrier for example.

By considering the three Defender images and combining the Terrafirma Coil Spring application guide and specifications it makes the job easier to select the suitable suspension kit for your vehicle.

Correct Coil Spring Selection:

It is important to understand that all Terrafirma Coil Springs have been designed to provide approximately 2”  (50mm) of lift while carrying light, medium or heavy loads. Minimal mechanical changes are required when lifting by this amount, however the Terrafirma Hardware range of accessories does allow for greater lift and significantly increased wheel travel, further enhancing your off-road ability.

Selecting the most suitable springs for your Land Rover may be with some compromise. A heavy load spring needed when fully loaded may ride too high and too hard when unloaded. Likewise a light load spring that is comfortable
and flexible will not achieve the desired lift or carry the heavy loads associated with expedition vehicles.

Load carrying coil springs are often progressive or variable (V) this provides a combination of comfort and load carrying in one spring.

It is worth noting that Terrafirma coil springs are esentially supplied in pairs (although you obviously get 4 in the suspension kits sold by the Electric Winch Shop), in many cases one spring is 10mm longer than the  other, the longer spring should always be fitted to the driver’s side.

Terrafirma coil springs

The purpose of a vehicle’s suspension is to support the weight of the vehicle and absorb impacts and to maximise the tyre’s contact with the ground while maintaining stability and control. When using your Land Rover off-road the limits of the standard suspension are quickly realised when the lack of wheel travel affects the vwheels traction and ultimately the vehicle’s ability to maintain forward motion.

The added benefits of long travel suspension are exponential. The taller suspension allows larger tyres to be fitted to your vehicle as well as allowing greater suspension movement. Raising the suspension will also increase your approach and departure angle to steeper hills,  and ramp over angles allowing your Land Rover to overcome larger obstacles making your vehicle a whole lot more versatile.

The Terrafirma Coil Springs are designed to lift the vehicle by approximately 2” (50mm).This is the optimum increase in ride height before the mechanical limitations of the suspension design become an issue requiring further, more expensive modifications.

Safety has to be a consideration, raising the centre of gravity too high increases the risk of a roll over. A vehicle lifted by 2” (50mm) using correctly matched Terrafirma Coil Springs and shocks will also improve on the road handling, comfort and stability from the original vehicle set up.

Terrafirma Coil Springs are made from the highest quality steel, formed on accurate computer controlled mandrels and precisely heat treated to ensure consistent manufacture. All springs are shot peened to relieve stress and scragged to ensure long spring life and prevent sag, finally powder coated silver to match the All Terrain and Pro Sport shocks for long lasting good looks.

BUY ONLINE:-

The Electric Winch Shop have these to buy online at very competitive prices with UK and European deliveries all available online. Click on the following links:-

ALL TERRAIN SUSPENSION KITS -

Light Duty Suspension Kit - Land Rover Defender 90, Discovery 1 and Range Rover Classic  
Medium Duty Suspension Kit - Land Rover Defender 90, Discovery 1 and Range Rover Classic  
Heavy Duty Suspension Kit - Land Rover Defender 90, Discovery 1 and Range Rover Classic  

Light Duty Suspension Kit - Land Rover Defender 110 & 130
Medium Duty Suspension Kit - Land Rover Defender 110 & 130 
Heavy Duty Suspension Kit - Land Rover Defender 110 & 130 


PRO SPORT SUSPENSION KITS -

Light Duty Suspension Kit - Land Rover Defender 90, Discovery 1 and Range Rover Classic  
Medium Duty Suspension Kit - Land Rover Defender 90, Discovery 1 and Range Rover Classic  
Heavy Duty Suspension Kit - Land Rover Defender 90, Discovery 1 and Range Rover Classic  

Light Duty Suspension Kit - Land Rover Defender 110 & 130
Medium Duty Suspension Kit - Land Rover Defender 110 & 130 
Heavy Duty Suspension Kit - Land Rover Defender 110 & 130 

Alternatively, you can call the Electric Winch Shop sales office on 01274 680744 and order over the phone. Or simply email sales@autoliftuk.com with your requirements.

If you already have one of the above kits you can click on the above links and add your own review of these suspension kits to the Electric Winch Shop!