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.
This is to further reduce the friction between the spring leaves & friction pads.
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.
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.
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 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