2" Suspension Lift, WK2 (Diesel) (OMEWK2DL)

Product Description

Fits:

Jeep Grand Cherokee WK2 (2011-2015); V6 Diesel with standard bumper, without tow pack

Optimized for Diesel engine with standard front bumper. Please contact us to discuss your specific requirement, example if you require a suspension system to carry a constant heavy load.

Kit Includes:

• 2 Front Spring PN: 3073 (Optimized for Diesel engine with standard bumper)
• 2 Front Nitro Charger Suspension Struts PN: 90026
• 2 Rear Spring PN: 3074 (Standard Duty, Medium Load)
• 2 Rear Nitro Charger Shock PN: 60124

Product Details:

Determining the right solution for your vehicle and your requirements demands special attention to many factors. Unlike numerous aftermarket suspension systems, which are only available in a single configuration targeting lift height, Old Man Emu (OME) now offers a range of tuned and matched integrated suspension systems engineered specifically for the Jeep Grand Cherokee WK2. This ensures the right suspension is available to suit how the vehicle is outfitted and the conditions it will encounter. This full line of suspension options will cover the range of builds from lightly built and stock vehicles up to those with 660 lbs. of constant weight being fitted. 

Design and Development:

The objective of OME engineering team was to develop an integrated suspension system for the Jeep Grand Cherokee WK2. The WK2 runs an independent front and independent rear suspension setup and is available in a number of engine variants. In some markets there is a tow pack option, which comes with a Nivomat (self-leveling) rear shock absorber. Air bag suspension models are available for the Jeep WK2 and this new OME suspension system does NOT replace, nor is compatible, with the Quadra-Lift airbag system. 

The key areas that were addressed in the design of these components were lift, load carrying capability, and comfort. With the WK2 being a mid-sized SUV, the original suspension provided a comfort-orientated ride, which had a tendency to top out and frequently contact the bump stops, especially on rougher surfaces and over speed bumps. The WK2’s factory geometry allowed for a 40 to 50mm lift, which improves overall wheel travel and off road capability. To meet this need longer travel shocks and struts were developed for improved down travel and were tuned to match the new spring specifications. 

Comprehensive fitting instructions have been created to assist in the fitment of the WK2 suspension system due to the level of complexity involved in removing the factory components.

Testing:

As there are known failures of stock and aftermarket WK2 front struts, extensive testing was conducted to ensure that these Old Man Emu components would exceed the demands of the harsh conditions and weight carrying stresses that these vehicles are put through around the globe. The following are standard OME test procedures which the WK2 components were subjected to:

• Fatigue testing the front clevis & body assembly
  
• Fatigue testing of the aftermarket spring seat on weld ring of body assembly
  
• The OME body assembly was sectioned & analyzed for weld quality compliance.
  

Front Suspension:

Three spring options were created for each engine variant to cater for a range of front accessory fitments. Each front strut option was tuned to match the spring weights and minimize the frequency of bump stop contact and top out events during on and off road driving. Extensive development went into the front strut, as there has been some reported issues of durability, specifically around the front clevis in both OE and other aftermarket products. Another challenge with manufacturing of the front strut was the physical length of the strut, which is now the longest body shock absorber in the OME range

A significant development project was undertaken to model and optimize the clevis design using 3D CAD modeling and Finite Element Analysis (FEA). A number of manufacturing options were considered, which resulted in a forged and machined clevis design being chosen. This final product is considerably stronger and more durable than the original equipment component that came on the vehicle from the factory. Another unique design feature is an outer body assembly housing a twin tube cartridge that increases the overall strength of the strut assembly. Further to FEA testing, extensive physical tests were conducted to verify all computer aiding engineering and benchmark against the original.

Rear Suspension:

A 50mm lift was achieved and 2 progressive rate spring designs were created to cater for medium loads and constants loads of 660lbs. As the Jeep WK2 is available with an optional tow pack, 2 different designs needed to be created. The tow pack option introduces a factory Nivomat (self-leveling) rear shock absorber that has a different top pin mount and different extended and compressed lengths. With 2 different shock designs and 2 springs to cater for loading options, the result is 4 different shock options for the rear. Please note when replacing factory Nivomat shocks, you must fit the appropriate OME spring. To identify whether a vehicle has the standard fitment rear shock or Nivomat shock, the outer body diameter will need to be measured. 

Standard fitment: 51mm (outside diameter)

Nivomat: 63mm (outside diameter)

Manufacturer - Old Man Emu

Designed for superior performance across all terrain, an Old Man Emu suspension upgrade by ARB will provide noticeable improvements to a vehicle’s performance, including load carrying capacity and control characteristics.

Australia’s leading 4×4 suspension brand takes into account your individual requirements with specialist engineers spending hundreds of man hours testing and modifying various combinations in the demanding Australian Outback so you can find the most suitable solution for your needs.

ARB and Old Man Emu’s commitment to providing the most comprehensive range on the market has resulted in an extensive selection of quality products. From OME shocks to OME suspension kits, Old Man Emu products are backed by a minimum 3 years or 60,000km (whichever comes first) warranty and aftersales service that is unmatched by any other suspension company.

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