GMT 900 Pics & Info: Silverado Interior Spy Shots

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BlazinXtreme
Front end conversions are real popular amoung mini truckers...and some how I overlooked the newest Silverado to the Tahoe.
Totally. You see it all the time with people putting the Escalade or Navigator front end on things. But, the new Silverado to Escalade was something I'd never seen before, or since. It was real cool. The body lines fit great, and it looked just like it came that way from the factory. Great looking home made Tahoe SS in a sense.

Hilg
 
There will be a Tahoe SS that's for sure, rumors say 8.3L V8 with AWD but thats a rumor. Also I wouldn't be surprised to see and LS7 in it.
 
See, now all they need to do is apply that to the Silverado. The first attempt at the "SS" was ok, but far from ample to keep with the SRT-10 and Lightning. Put 500hp in a 2WD, short bed, 2-door, short-cab truck, and you have a winner.

No more pu$$y-footing around with 300-some hp, and heavy, clunky AWD and extended cab crap. Make it live up to the "SS" name. The old 454SS truck was a monster. Anything like that again would rule

The new Trailblazer SS is a good start. 400hp in that is a nice number in something that size. Apply that thinking to the Tahoe, Silverado, and Colorado, and you sell tons.

Hilg
 
The SS Silverado now was decent, but if you wanted something good you needed to buy the Joe Gibbs Silverado, it was much better then the SS. The only thing the SS had going for it was AWD.

They will make a Silverado more then likely along with the Tahoe. But I don't know what would be better 8.3L V8 or a 7.0L V8. Either one you would get 500+ hp. I know GM wants to school Dodge in the truck catagorey.

The Trailblazer SS is decent, but it's no Typhoon.

The Colorado SS is supposed to have a 5.3L V8 in it.
 
BlazinXtreme
The Trailblazer SS is decent, but it's no Typhoon.
I doubt anything ever will be. That thing was a one-time flash in the GM pan of sheer awesomeness. The Sy/Ty combo were just too good to be true. We might never get anything that great again.

Hilg
 
I was always hoping GM would at least come out with a turbo kit for the 4.3L through GM Performance, but there are guys who turbo Blazers...in fact I met one guy in Grand Rapids over the summer who had a turboed 2002 Blazer Xtreme.
 
New pics released: 07 Yukon and Yukon Denali
Source: www.gminsidenews.com, www.thecarconnection.com

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07 Yukon and Denali Information
Source: www.thecarconnection.com

The next two versions of GM's new full-size SUVs are on display this week at the California International Auto Show in Anaheim. The GMC Yukon and Yukon Denali, in GM's words, have exceptional driving characteristics. What's immediately obvious, too, is that they have distinctive appearances, much more so than the last editions.

The Yukon is the mass-market edition, available in cloth or leather-trimmed versions with rear- or four-wheel drive. Tall headlamps and smart details distinguish the Yukon from the similar Chevrolet Tahoe. Like the Tahoe and the new Denali, the Yukon is longer and wider than the past versions, has a stiffer body structure and a new power-steering rack, and standard anti-lock brakes with stability control.

Seventeen-inch wheels are standard on the Yukon, as is a 320-hp, 5.3-liter V-8 engine (though a 290-hp, 4.8-liter version will replace that on rear-drive models later in the model year, GM says).

The Yukon Denali, meanwhile, gets some exclusivity added to its image in the 2007 edition. A new 380-hp, 6.2-liter V-8 mated to a tap-shift six-speed automatic transmission is reserved for the Denali model. A chromed grille, different head and taillamps and special 18-inch wheels separate it from the Yukon as well as automatic climate control and remote starting.

Both the Yukon and Denali offer a laundry list of options, including running boards, a power tailgate, DVD navigation and a DVD entertainment system, as well as three-row side-curtain airbags (standard on the Denali). Both versions will be on sale in the first quarter of 2006.
 
More info will be released by GM tomarrow, some time after midnight is the word on the street, I'll post it all up at work tomarrow.

But all I can say is tap-shift 6 speed...HELL YA!
 
:yuck: :yuck: :yuck:
Oh lord. I was hoping for better. Uhhh, maybe it will grow on me. But, first impression, the grill is way too big, and the headlights are massive. Once I see more pics or whatever, it might grow on me. But as of right now, it looks like we won't be getting another Denali.
:grumpy: :grumpy: :grumpy:

Hilg
 
It looks happy was my first impression of it, it kinda sucks since I've been away from the project so long they changed a few things.

Also it sort of looks like a Caddy STS.
 
Funny how some concept elements make it to production:
Picture from: www.automotriz.net

I find the front of the Cheyenne Concept Truck for 2003 looks similar to the new Yukon front.

chevy-cheyenne-1_2.jpg
 
Add a few more angles, and I would mistake that for an SRX at first glance.
I don't like it. 👎 👎

Jnasty, no problem. No matter to me, no offense either. Why don't you join us in the weekly PSC's?
 
All-New 2007 Yukon Lineup: Refined, Efficient and Powerful
Source: GM Media and www.gminsidenews.com

ANAHEIM, Calif. – GMC unveiled the all-new 2007 Yukon and Yukon Denali full-size SUVs Oct. 5. They are based on GM’s all-new full-size SUV family, which features distinctive styling, spacious and refined interiors, exceptional driving characteristics and enhanced safety features.

The new Yukon family is distinguished with sleek, expressive styling that announces a new look for GMC vehicles – styling that conveys GMC’s professional grade qualities and a distinct design from other GM vehicles. The vehicles offer more power and better fuel economy than the vehicles they replace, enhancing GMC’s “more than expected” reputation.

“The all-new 2007 Yukon and Yukon Denali bring GMC’s professional grade philosophy to a new level – we’re aiming to provide customers more than they expect in all respects,” said John Larson, GMC general manager. “Yukon Denali is our flagship and delivers the performance and features of a luxury SUV, along with the full capability demanded in a full-size truck.”

Yukon and Yukon Denali are available early in the first quarter of 2006. Yukon is available in SLE (cloth trim) and SLT trim (leather appointments), as well as 2WD and 4WD configurations. Yukon Denali is a distinct model, with differentiated, exclusive features that elevate its performance and style to an unprecedented level – including an exclusive 6.2L all-aluminum small-block V-8 engine with variable valve timing and a new six-speed automatic transmission.

Distinctive design

Yukon and Yukon Denali have a sleeker, taut form. Wraparound front and rear fascias, styled mirrors and integrated running boards provide a seamless, contemporary appearance. Craftsmanship is found in elements such as tight tolerances between exterior components and a tuned, wheels-to-the-corners proportion. The wheels are aligned on the same plane as the outer edges of the fenders, giving the vehicle a confident, broad-shouldered stance.

The toned look on all models is created with faster windshield angle of 57 degrees, which flows gracefully into the roofline. This also improves aerodynamic performance to a segment-best 0.363 cd, which helps improve fuel economy and reduce wind noise.

Jewel-look lighting elements, wraparound fascias and doors that extend over the rockers accent the vehicles’ precise and refined design elements. The headlamps are larger, using bright halogen bulbs that deliver improved lighting spread. Rear-end styling also is distinct, with unique treatments above the beltline and around the glass, including taillamps and integrated license plate pockets.

Yukon Denali is distinguished with exterior appointments that take its exclusive appearance to a higher, more differentiated level. In addition to its iconic chrome grille, the ’07 Yukon Denali also features enhanced exterior bright work, unique and premium-look headlamps, taillamps and rear fascia treatment, as well as unique 18-inch standard wheels – 20-inch wheels are available. The headlamps and taillamps further the jeweled look of Yukon models with detailed lighting elements and clear lenses – with etched GMC logos on the headlamp bezels – that provide a crystalline appearance and distinctive lighting patterns.

All models offer features such as articulated running boards (available mid-year) and a power liftgate. Vehicles not equipped with the power liftgate feature an easy-to-operate liftgate that is specially designed with a micro-switch that assists the operator by using the mass of the tailgate to almost open or close itself once the liftgate is past the halfway-open position. An ergonomically designed, recessed cup with pull handle makes closing the liftgate an easy, one-handed operation.

Spacious, refined interior

Interior space is roomier – including increased cargo capacity – and has a spacious, luxurious environment, thanks to a premium two-tone color scheme and a lower-positioned instrument panel. New thinner, sculpted seat designs and detailed trim affirm Yukon ’s craftsmanship, which is bolstered by amenities such as heated seats for first- and second-row passengers. Also, the front seats offer more fore/aft and recline travel, and the second-row seats have an increased seatback recline angle for added comfort.

The two-tone interior appearance contributes to the vehicles’ aura of a roomy, luxury sedan. The upscale styling is complemented by new, softer and low-gloss materials for the instrument panel and other trim pieces. The harmonious color and grain of the materials was carefully selected to provide a premium feel as well as durability. Flush-mounted controls and radios, with almost imperceptible gaps, convey precision and integration. Chrome accents are used on instrument surrounds, vents and other trim.

Craftsmanship also is revealed in unexpected areas: distinctive sill plates with no visible hardware greet occupants when the doors are opened and there are no exposed fasteners or hardware on the pillars, seats or seat tracks. The seats have “close-outs” that surround the seat bottoms and seat tracks, creating a more finished appearance. Fasteners and hardware are covered, too, when the seats are folded.

As with the exterior, Yukon Denali is distinguished with exclusive, premium features, including luxurious nuance leather seating surfaces, unique center console, enhanced interior bright work and detailed, highly finished embossed sill plates that greet passengers when they open any of the Yukon Denali’s doors. The unique center console has wood trim that conceals the lid and cupholder pockets, creating a more finished and refined appearance.

The Yukon family also offers a new, industry-exclusive power fold-and-tumble second-row seat feature that eases access to the third-row seat. The power fold-and-tumble second-row seats feature release buttons accessible by the driver or on the interior C-pillar to provide an easy, immediate release of the seat to create an access path to the third-row seat or cargo area.

Tri-Zone climate control is standard on all models. Automatic climate control is standard on Yukon Denali and Yukon SLT; it is available on Yukon SLE. A remote start feature, standard on SLT/Denali models and available on SLE, allows the climate system to heat or cool the vehicle’s interior. An enhanced array of audio, infotainment and safety options also is available and includes an available touch-screen navigation system, as well as a DVD system with larger flip-down screen.


There is more space inside the SUVs, as well. More fore/aft front seat travel provides the segment’s leading legroom for front-seat passengers. Second-row seat legroom and knee room, and third-row seat headroom are increased over the previous models. The second- and third-row seats also have more shoulder room – a feat accomplished while also offering available roof-mounted head curtain side air bags. Cargo room has increased 4.2 cubic feet (118.9 liters) behind the second row seats and 2.3 cubic feet (65.1 liters) behind the third row. The third-row seats fold flat and are easily tumbled forward or removed for maximum cargo area. Also, the center console storage compartment, at 20.1 liters of capacity, is the segment’s largest. The glove box offers 25 percent more storage space than previous models and features damped opening operation that bolsters quietness and refinement.

Responsive driving experience

The ’07 Yukon and Yukon Denali are built on GM’s new full-size SUV platform, which incorporates features such as a new, fully boxed frame, coil-over-shock front suspension and rack-and-pinion steering. The new frame offers 49 percent increased torsional stiffness and 35 percent improvement in beaming frequency, compared to previous models. The frame supports wider front and rear tracks – approximately 3 inches (76.2 mm) wider in front and 1 inch (25.4 mm) wider in the rear – that enhance stability and driving confidence through a more secure road feel and a lower center of gravity.

The front suspension consists of an all-new coil-over-shock design that delivers linear, solid and unwavering ride and handling characteristics on all road surfaces. Also new is a rack-and-pinion steering system that provides precise and responsive control and enhanced on-center feel. A highly-refined five-link rear suspension provides superior isolation and ride, with larger, firmer brackets that also contribute to the vehicles’ precise driving manners.

Larger, four-wheel disc brakes and an all-new ABS system ensure braking performance at the top of the segment. Larger vented front and rear brake rotors, 50-percent stiffer dual-piston calipers, longer-life brake pads and a new, robust tie-rod-type apply system contribute to enhanced pedal feel, reduced brake noise, predictable, linear brake response and shorter braking distances. A new, Bosch 8.0 next-generation four-channel ABS system also is standard. The ABS system works with the standard StabiliTrak electronic stability control system. In the new SUVs, StabiliTrak incorporates the first-time GM application of roll-over mitigation, software algorithm technology that uses sensors to proactively predict vehicle “tip-up” and applies appropriate brake forces to prevent such events.

Enhanced driving control and ride smoothness is offered with the available Autoride real-time damping system (standard on Yukon Denali), which uses electronically controlled shock absorbers to make nearly instantaneous damping adjustments. The system “reads” the road and anticipates the best damping rates.

Seventeen-inch wheels are standard on Yukon, with 18-inch wheels standard on Yukon Denali. Twenty-inch wheels are available on Yukon and Yukon Denali. The wheels are designed with premium-appearance faces, including available chrome or polished finish. Yukon Denali wheels are exclusive. New tires are tailored to the vehicles to provide excellent balance of handling, quietness and safety.

A new Gen IV small-block V-8 family powers the Yukon family and offers more power than comparable powertrains in previous models. A 5.3L small-block V-8 is standard at start of production in Yukon and is rated at 320 horsepower (238 kw)* and 340 lb.-ft. of torque (470 Nm),* an 8 percent horsepower increase compared to the previous 5.3L engine. A Flex-Fuel E85 version, which is capable of running on E85 ethanol fuel or a mixture of E85 and gasoline, is standard on 4WD models and available on 2WD models. E85 is comprised of 85 percent ethanol, which is a renewable resource fuel produced in the United States. A 4.8L V-8 engine, rated at 290 horsepower (216 kw)* will become the standard engine of Yukon 2WD models later in the ’06 model year.

The 5.3L engine’s Displacement On Demand technology enables better fuel economy. When combined with other vehicle-wide features, including improved aerodynamics, the small-block V-8 helps provide the segment’s best fuel economy. The 6.2L engine of the Yukon Denali is all-new, with advanced technologies and lightweight materials – including variable valve timing and an aluminum cylinder block – contributing to the vehicle’s uncompromising performance. It produces 380 horsepower (283 kw)* and 415 lb.-ft. of torque (564 Nm).*

The engines are backed by proven Hydra-Matic electronically controlled automatic transmissions, including a new 6L80 six-speed that is matched with the 6.2L engine.

The six-speed automatic has a wide, 6.04:1 overall ratio – including two overdrive gears – that helps deliver an excellent balance of performance and fuel economy. Also, the 6L80 has a “tap up/tap down” capability that allows the driver to manually select upshifts and downshifts with a button on the column shifter.


Safety and security

As with all vehicles built on GM’s new full-size SUV platform, the ’07 Yukon family features a 360-degree safety system designed around the pillars of occupant protection, driver control and personal safety.

New features, including exclusive safety belt pretensioners linked to sensors for rear-end crashes, are integrated into a stronger vehicle structure that is also designed for improved compatibility with other vehicles – helping Yukon protect those inside and outside of the vehicle before, during and after a crash. The exclusive rear pretensioner sensors can trigger the front seat pretensioners during a rear-end collision, holding the occupants firmly in place and helping to prevent whiplash injuries

Also, new roof-mounted head curtain air bags with tethers are available for all seating rows (standard on Yukon Denali). The roof-mounted air bags’ tether system keeps the bags in place longer to further protect and contain occupants. The bags stay inflated for several seconds longer to provide optimum protection in the case of a rollover or crash with secondary impacts. Sensors located at the front and rear of the vehicles, as well as the side doors provide increased and more immediate crash detection.

The myriad of crash sensors are complemented by increased roll-over detection from the standard StabiliTrak stability control system with new rollover mitigation technology. The electronically controlled system continuously measures the side angle of the vehicle and, if a rollover appears imminent, it can deploy the side-curtain air bags before the crash occurs. The 360 degrees of detection capability allows the electronically controlled safety systems to deploy in a greater variety of situations.

Crash avoidance is bolstered through enhanced driver control dynamics, driven by the standard StabiliTrak stability control system. It is supported by dynamics such as wider front and rear tracks, as well as more responsive suspensions. The vehicles’ stronger and stiffer, fully-boxed frame is designed for improved crash energy management. The front frame section, for example, has improved crush dynamics that provides the equivalent of 17.7 inches (450 mm) of additional crush space – in vehicles that are only approximately 3 inches (76.2 mm) longer than their predecessors. The frame also is designed for improved vehicle-to-vehicle compatibility in the event of a frontal impact with a smaller vehicle.

Additional safety and security features include:

* Standard dual-stage driver’s front air bag
* Standard dual-stage outboard-front passenger air bag with passenger occupant detection system
* 5-star frontal impact ratings anticipated
* Standard tire pressure monitoring system
* Available rain-sensing wiper system
* Available Ultrasonic Rear Parking Assist that can detect people or objects in the rearward path of the vehicle and send an audible warning sound
* Available rear-view camera system that can visually detect people or object in the rearward path of the vehicle
* Standard pull-up/push-down power window switches

All models come with the Generation 6 OnStar system (with a one-year Safe and Sound service plan), which provides the personal protection component of Yukon ’s safety pillars. The system includes the General Motors Advanced Automatic Crash Notification (AACN) system, making crash data available to emergency services to potentially dispatch the appropriate life-saving personnel and equipment to crash scenes faster. If the vehicle is in a crash that activates an airbag, the OnStar system automatically notifies an OnStar Advisor who will check on the occupants or summon emergency help if necessary. OnStar also can assist authorities in locating a vehicle if it is reported stolen (ability to locate stolen vehicles varies with conditions).

Denali details

The iconic Yukon Denali delves deeper into the luxury SUV realm with enhanced features and craftsmanship that distinguish it from other models. It is a comprehensive package of performance, amenities and style that delivers a powerful, understated elegance that is unique to GMC.

Yukon Denali remains instantly identifiable, with its Denali-specific chrome grille. In addition to the grille, the ’07 model includes chrome-accented side molding, roof rack trim and other bright work treatments. Additionally, the headlamps and taillamps are unique and feature a premium, crystalline appearance and distinctive lighting patterns.

The new Yukon Denali is powered by an exclusive, 380-horsepower (283 kw) 6.2L V-8 engine, six-speed automatic transmission with tap-up/tap-down shifting and automatic all-wheel drive – a powertrain not shared with any other Yukon model. Eighteen-inch polished aluminum wheels are standard and unique 20-inch factory installed chrome-finish aluminum wheels are available – the wheel designs are not shared with other Yukon models.

Yukon Denali also offers a unique combination of interior style and luxury, including standard nuance leather-covered seating with heated first- and second-row seats, as well as leather trim throughout – including a Denali-exclusive leather-wrapped steering wheel, which also features real wood accents and a host of auxiliary controls. Yukon Denali also is the only model in the Yukon family to offer an available heated steering wheel.

Other standard features include power liftgate, power release 2 nd row fold-and-tumble seat, roof-mounted side-curtain air bags, power-adjustable pedals, electrochromic (auto-dimming) inside mirror, RainSense automatic windshield wipers, remote start and Ultrasonic Rear Parking Assist. From an entertainment standpoint, Yukon Denali comes standard with an AM/FM MP3-capable radio with a six-disc in-dash CD changer, Bose premium nine-speaker sound system and XM Satellite Radio.

Like other Yukon models, the Yukon Denali offers several helpful and convenient options, including a navigation radio system, rear-view camera system, power sunroof, power-retractable assist steps (available mid-year) and a rear-seat, DVD-based entertainment system.

*Preliminary, pending certification. A new voluntary power and torque certification procedure developed by the SAE Engine Test Code committee was approved March 31, 2005. This procedure (J2723) ensures fair, accurate ratings for horsepower and torque by allowing manufacturers to certify their engines through third-party witness testing. GM was the first auto manufacturer to begin using the procedure and expects to use it for all newly rated engines in the future.
 
Oh, and the more pics I see of the Denali, it is sneaking up on me. I don't know though. The headlights are a bit much. The grill, not so much. Thats fine. But, the headlights are just so overbearing. Hmmm, we'll give it time and see.

Hilg
 
I have no big issues with the main grille or headlamps (which clearly follow the lead of the Envoy), but that little "chin" grille should not be chromed! It looks silly, and I think that's whats making the front look so tall.

EDIT: and why are there two inches of fake wood on either side of the HVAC/radio controls? Did someone design the stack without considering how wide the radio is? Because that's what it sure looks like. Even Hyundai doesn't slather on that much fake wood...
 
I don't understand what you are trying to say skip because the picture you posted is out of a Hyundai.

There should be some more higher res pictures out before too long.
 
New GMC Yukons Go to Work as Habitat Builds Home at California International Auto Show
Source: www.biz.yahoo.com

ANAHEIM, Calif., Oct. 5 /PRNewswire/ -- Although it won't appear in showrooms until early next year, the 2007 GMC Yukon is already living up to its professional grade reputation, and for a good cause: helping provide a home for a family in the hurricane-ravaged Gulf region.

Today at the Anaheim Convention Center, site of the California International Auto Show, two all-new 2007 GMC Yukons will haul in the materials needed to rough in a home that volunteers from Habitat for Humanity's Orange County affiliate will build at the convention center. The homes are part of "Operation Home Delivery," Habitat's for Humanity International's hurricane rebuilding program aimed to help provide simple, decent and healthy homes for some of the families displaced by back-to-back Hurricanes Katrina and Rita. GMC also is underwriting the materials for the home.

"The devastation and suffering these hurricanes caused will be with us for a long time," said Pontiac-GMC General Manager John Larson. "The GM family is committed to doing all it can to help get these families back on their feet. That recovery begins with a home."

The 2007 GMC Yukons, which can tow up to 7,700 pounds, delivered a large, flatbed trailer to the building site loaded with materials and supplies. Volunteers, working with building specialists, will "pre-build" the frame of a home over a few days. The frame will then be taken apart and the components placed in a container and shipped to an area along the Gulf Coast where families, volunteers and builders will rebuild the home on its final foundation. The effort mirrors those that will soon be taken by Habitat for Humanity affiliates around the country.

"The most exciting part of 'Operation Home Delivery,'" said Nevil Eastwood, director of programs for Habitat, "is the 'containerization' concept. This program holds the greatest potential for help and hope, and better, provides help and volunteer opportunities for people in communities all across America to have a role in rebuilding."

The 2007 Yukon and Yukon Denali, unveiled to media and the public at the auto show, are based on the all-new GM full-size SUV family, which feature comprehensively redesigned powertrain, chassis, safety and interior systems. They are designed to lead the segment in performance, safety, efficiency and capability. They offer more power, towing capability and better fuel economy than the vehicles they replace, enhancing the Yukon family's "more than expected" reputation.

In addition to the materials for the home being built in Anaheim, GM, the GM Foundation and GMAC have committed at least $1 million in cash and about $6 million in vehicles to the overall relief effort, including the Habitat for Humanity component. In addition, GMAC continues to work with automotive financing, insurance and mortgage customers on a case-by-case basis.

General Motors Corp. (NYSE: GM - News), the world's largest automaker, has been the global industry sales leader since 1931. Founded in 1908, GM today employs about 317,000 people around the world. It has manufacturing operations in 32 countries and its vehicles are sold in 200 countries. In 2004, GM sold nearly 9 million cars and trucks globally, up 4 percent and the second-highest total in the company's history. GM's global headquarters are at the GM Renaissance Center in Detroit. More information on GM can be found at www.gm.com.
 
BlazinXtreme
I don't understand what you are trying to say skip because the picture you posted is out of a Hyundai.
He was showing that pic for reference. There is a large ammount of wood on the dash of the Yukon. He was just showing that even Hyundai doesn't use that much.

Hilg
 
General Motors, Eaton Make Full-Size SUVs More Fuel Efficient with Cylinder Deactivation
Source: www.businesswire.com

SOUTHFIELD, Mich.--(BUSINESS WIRE)--Oct. 6, 2005--General Motors recently unveiled its new line of 2007 model year full-size sport utility vehicles equipped with Displacement on Demand, an innovative valve train technology developed by GM and Eaton Corporation (NYSE:ETN) to improve the fuel economy of the V8-powered vehicles.

Displacement on demand is a fuel-saving technology that enables the engine to seamlessly operate on only half of the engine's cylinders when full power is not needed, improving efficiency by as much as 12 percent in some vehicles. GM reports that with Displacement on Demand the full-size 2WD 2007 Chevrolet Tahoe gets 20.5 mpg (EPA unadjusted combined mpg.)

"We have been able to leverage our expertise in valve train technology and hydraulic solenoid technology to create an unique system for customers that actually changes the engine's displacement based on the performance required," said Jeffrey Romig, vice president and general manager, Eaton Valve Actuation. "The system can switch to a four-cylinder operation without any discernible change in performance and without the driver even noticing. This can result in significant fuel savings."

The system functions through the interaction of two key elements: An "intelligent" valve lifter, and an industry first from Eaton, the lifter oil manifold assembly (LOMA). Based on driving conditions such as vehicle load and speed, the vehicle's engine controller determines if conditions are appropriate to switch from eight cylinders to four cylinders. If a vehicle has a light load, for instance, or is cruising at highway speeds, the system shuts down the cylinders until more power is needed.

When the driver accelerates or needs more towing capacity the system seamlessly re-engages all the cylinders. "The process happens instantaneously and is undetectable by the driver. The system can shift on and off as often as necessary, often several times a minute," Romig said.

The "intelligent" valve lifter is the technology that uncouples the unneeded intake and exhaust valves, while the lifter oil manifold assembly - neatly tucked in an open space in the engine cavity - is responsible for directing engine oil pressure to and from the lifter during cylinder deactivation and reactivation.

GM introduced Displacement on Demand in the 2005 Chevy TrailBlazer EXT and GMC Envoy XL mid-size SUVs. For the 2006 model year, GM offers the fuel-saving technology on nine different models, including the new Chevrolet Impala SS and Monte Carlo SS.

Eaton Corporation is a diversified industrial manufacturer with 2004 sales of $9.8 billion. Eaton is a global leader in electrical systems and components for power quality, distribution and control; fluid power systems and services for industrial, mobile and aircraft equipment; intelligent truck drivetrain systems for safety and fuel economy; and automotive engine air management systems, powertrain solutions and specialty controls for performance, fuel economy and safety. Eaton has 57,000 employees and sells products to customers in more than 125 countries. For more information, visit www.eaton.com
 
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