LOS ANGELES, Tues., Jan. 25, 2011 – Rancho® has developed and released a brand-new 4-in. performance suspension system for the new 2011 Chevrolet Silverado and GMC Sierra 2500HD 4WD.

The new system, launching this spring, will be available at leading performance retailers throughout North America. The Silverado/Sierra system accommodates up to 35-in. tires.

The new Rancho Silverado/Sierra system (RS6564B) includes a one-piece, re-inforced subframe made from high-strength, low-alloy steel for a no-compromise approach. The new system also includes Rancho CNC-machined, extended cast steering knuckles that deliver superior strength and reliability plus improved ride and handling characteristics. To complete the system, the Rancho kit contains tubular aft braces.

Driven to match the precise standards of Rancho engineers, the Rancho Silverado/Sierra system requires no drivetrain or exhaust modifications during installation; allows for the re-use of stock wheels; and maintains the factory location of rack and pinion and factory alignment specifications.

The new Rancho Silverado/Sierra 2500HD system is offered with a limited lifetime warranty and includes all of the necessary illustrated instructions for a fast, easy installation.

Rancho also offers RS9000XL® shocks for the 2011 Chevy Silverado/GMC Sierra trucks. The shocks are fully compatible with the Rancho MyRide® Wireless Controller, allowing for wireless control of the shocks from the cab.

The MyRIDE Wireless Controller provides one-touch wireless damping control of QuickLIFT units. The Wireless Controller includes a variety of one-touch presets, including Highway, Sport, Tow/Haul, Off-Road, and a driver-determined MyRide, which allows the owner to set his own preferred ride setting and save it for future use.

Rancho products are manufactured and marketed by Tenneco Inc. (NYSE: TEN) and headquartered in Long Beach, Calif.

For more information about the new Rancho 2011 Silverado/Sierra 2500HD kit or other Rancho products and accessories, please visit www.gorancho.com, contact your nearest Rancho dealer or call 1-734-384-7806. To locate your nearest Rancho authorized dealer, please use the “Dealer Locator” at www.gorancho.com to generate a list of nearby retailer stores in your selected region and other online retailers.

Tenneco is a $4.6 billion global manufacturing company with headquarters in Lake Forest, Illinois and approximately 21,000 employees worldwide. Tenneco is one of the world’s largest designers, manufacturers and marketers of emission control and ride control products and systems for the automotive original equipment market and the aftermarket. Tenneco markets its products principally under the Monroe®, Walker®, Rancho®, DynoMax®, Thrush®, Gillet™ and Clevite® Elastomer brand names.