OME Spring Features & Benefits

As we talked about before, each spring is engineered for a specific vehicle and load.  In many cases there are numerous spring options available for a single truck or SUV. Our leaf springs, coil springs, and torsion bars are all feature packed. You may find other manufactures with similar characteristics, but our products have every available option you can find.


  • Draw Tapered & Diamond Cut Leaves:
    • The shape of each leaf is designed to ensure the load is progressively distributed over a larger surface area, reducing the high stresses that develop at leaf ends. This provides increased ride quality and protection against leaf breakage, significantly increasing the spring life.
  • Bolt Clamps & Liners:
    • The leaf clamps are bolted to allow installation of extra leafs (when needed). The clamps keep the leaves from splaying. Anti squeak nylon liners eliminate metal to metal contact between the leaves and clamps.

      The black plastic liners eliminate squeaking. The bolts and sleeves allow for additional leaves.

  • Fully Scragged & Load Tested
    • Scragging is the process of subjecting the spring to a load greater than that which will experience in service. This ensures that the spring steel has yielded and adopted permanent curvature and ensures the spring takes a permanent ‘set’ which reduces the risk of sagging.
    • Load testing ensures the spring meets the required specification.
  • Graphite Coating
    • This is to further reduce the friction between the spring leaves & friction pads.
  • Military Wrap
    • Designed to provide added safety if the main leaf was to break, the wrap would hold the spring together.

      The second, 3/4 eye wrap on this spring is the military wrap.

  • Anti Friction Pads
    • Greasable nylon interleaf liners reduce friction at the leaf tips where the load is the greatest.

      Each leaf has a teflon pad that comes pre-greased. If needed, the pad can be re-greased.

  • Flat Axle Seat Area
    • Allows a positive, safe axle mount; reducing spring stress & increasing spring life.
  • Shot Peening
    • The tension side of all leaves is shot peened (similar to sand blasting, but it changes the metals plasticity) to reduce spring stress. This process can double the life of a spring.
  • Two-stage Leaf Pack
    • Featured on most rear springs for optimum comfort. When unladen the vehicle will ride on the primary stage, typically of a lighter spring rate. The secondary stage provides additional support when a heavy load is added.

Most Emu Dakar leaf springs have all the listed features, but where design or a physical limitation exists one or more of these features may not be incorporated.


  • X5K Micro-Alloyed Spring Steel
    • New generation high strength spring steel. This steel is enhanced by additions of silicon, chromium, and vanadium nickel, along with lower carbon than conventional spring steel grades.
    • Material difference allows these springs to withstand higher operating stresses with superior resistance to sag and improved toughness and corrosion fatigue properties.
  • Springs are formed on precision mandrels
  • Scragging before and after shot peening to prevent sagging
    • Scragging is the process of subjecting the spring to a load greater than that which will experience in service. This ensures that the spring steel has yielded and adopted permanent curvature and ensures the spring takes a permanent ‘set’ which reduces the risk of sagging
    • Shot peened is similar process to sand blasting, but it changes the metals plasticity and thus it reduces spring stress.
  • Constant and variable rate coils available for multiple applications
  • Coil spring end configurations designed to exact specifications guaranteeing perfect fit to your vehicle. Our springs are not generic.
  • Durable powder coat finish


Designed and set for optimum ride performance, while maintaining maximum wheel travel crucial to off road action.

  • Premium grade spring steel with a resilient powder coat to protect against corrosion
  • Precision drawn, dropped forged ends for optimal strength and integrity
  • Pressure rolled splines for precise fitment and increased spline durability
  • Hardened and tempered to exact specifications for improved performance
  • Preset and hardened to prevent sagging and increase life cycle

Old Man Emu As A System

Old Man Emu suspension systems include carefully matched spring and shock combinations engineered to improve vehicle ride, handling and control under various loads.

A single suspension lift kit system designed to suit a multitude of users simply isn’t practical, as each user’s preferences will dictate how the vehicle is outfitted and used. At OME, we offer a range of tuned and matched integrated systems, each offering varying degrees of comfort, load carrying capability & control characteristics.

Our engineers carry out initial vehicle evaluations that include everything road handling to geometry mapping. This allows us to understand the suspension limits of the vehicle and areas for us to improve.

Shock absorbers and springs for each new vehicle start off as prototypes, and are tested and modified in a variety of terrains and with varying loads. These trials and modifications can take weeks of testing in order to ensure the best possible combination for each application. The geometry mapping allows us to ensure no other factory equipment will need to be replaced and that our springs and shocks will install just as OE replacements.

We test and modify as long as it takes to ensure each shock and spring combination is ideally suited to a vehicle. When the designing and engineering is completed, the samples are left on the vehicle and undergo durability testing.

Pat Callinan can show you the benefits of an Old Man Emu Suspension


We will be exploring the technical features of the OME components next.

Recovery Strap Info

Vehicle recovery straps can be made from a number of different materials. Here at ARB, our snatch straps are manufactured from nylon while our tree trunk protectors and winch extension straps are made from polyester. The nylon is what gives the snatch strap the ability to stretch and return to its original shape. This stretch adds kinetic energy to your recovery efforts, but also prolongs the life of the strap. Polyester exhibits minimal stretching, thus making it ideal for tree savers and winch line extensions.

It is imperative for these straps to be stored in a clean, dry location when not in use. From testing, we know that a damp strap can loose 20% of its strength. Dirt, grit, chemicals, and oil will embed in the webbing and physically cut the fibers when put under stress.

We spent around 18 months developing and testing our new straps, trying many weave styles, widths, thicknesses and eye stitching styles to get to the strap we have today.

-Adapted from 4×4 Action article and email by Mark Lowry (Manager-Product Development & Evaluation)