Parabolic Leaf Springs now available for Ford Ranger P703

Initially released in 2018, Terrain Tamer Parabolic Springs apply an already well-established idea in the trucking industry, combined with modern technology and a special grade steel, to create a carefully researched design specifically for 4WD vehicles.
Now, Terrain Tamer has added to its popular range of Parabolic Leaf Springs, with an option now available for the Ford Ranger P703 model.
Traditionally heavy linear leaf packs can be uncomfortable and loud and can create a safety issue, as they offer little to no flex, meaning that when a driver hits a bump, or finds themselves in a rough offroad situation, the rigidity of the leaf pack will cause the opposite wheel to lift, spinning and losing traction, ceasing drive, and effectively endangering the driver.
Terrain Tamer explains Parabolic Leaf Springs typically contain fewer leafs and get their name from their tapered “parabolic” design, meaning they are thicker in the centre and thinner at the ends.
The tapered design of each leaf allows the stress to be distributed more evenly across the spring, each leaf is allowed to work independently with enhanced flex, keeping all four wheels on the ground while ensuring the strength needed to bear heavy load capacities.
Terrain Tamer says this is particularly useful in 4WD applications that carry excessive load on the driveline, or when challenged with difficult terrain.
It explains the flex afforded with a Parabolic Spring lets it give a little when the driver hits a bump, allowing the differential housing to rotate with the springs and effectively providing a smoother ride, reducing the shock transferred to the crown wheel and pinion, stopping the wheel from spinning, and maintaining safety and drive.
Terrain Tamer notes the same force with a standard leaf pack would almost certainly cause more shock to the vehicle and driver.
This design dramatically reduces the unsprung weight of the vehicle, freeing up the weight needed for practical use, addressing the issue of GVM limits, and accommodating the varying and ever-changing applications that the modern day 4WD is used for – such as towing heavy loads, carrying tools or touring with the family, and ensuring a comfortable ride whether empty or loaded.
The Parabolic shape also provides better axle articulation, as well as almost no interleaf friction, allowing the spring to compress or extend with ease without touching each other until there is a reasonable load on the vehicle.
This feature means that the springs are not only quieter, but it also acts to help minimise any issues with rust build up, which can be a major cause of failure in standard leaf springs.
This new release adds to the existing range available for Toyota, Mazda, Holden, Isuzu, Mitsubishi models and more, as well as the Ford Ranger PX 1, 2 and 3 models, which are offered in standard parabolic, heavy duty and extra heavy-duty options.

For more information, visit