Quadrasteer
Encyclopedia
Quadrasteer is the name of a 4 wheel steering system developed by Delphi Corporation while under the ownership of General Motors for use in automobiles. It was available as an option on GM's full-size pickup trucks and 2500 suburbans for model years 2002 to 2005, inclusive. http://www.detnews.com/2005/autosinsider/0502/22/B01-93847.htm
Such a system is a tremendously useful feature to people who tow regularly, as it enables a person to turn their vehicle in much tighter spaces than if they had a regular steering system. It is costly, adding as much as $5,600 initially (later reduced to about $2,000 and then $1,000 to boost acceptance) to the price of the vehicle. Many people, especially those who tow boats, fifth wheels, or other large equipment found the system useful enough to justify the expense.
The rear axle is based on the Dana 60
axle.
Vehicles that offer the upgrade include:
decided not to proliferate on the system because it originally did not seem productive, the only models left are the Dodge Ram
, Toyota Tundra
and Nissan Titan
.http://www.pickuptruck.com/html/stories/qs420/page1.html
Such a system is a tremendously useful feature to people who tow regularly, as it enables a person to turn their vehicle in much tighter spaces than if they had a regular steering system. It is costly, adding as much as $5,600 initially (later reduced to about $2,000 and then $1,000 to boost acceptance) to the price of the vehicle. Many people, especially those who tow boats, fifth wheels, or other large equipment found the system useful enough to justify the expense.
Mechanics
The system was primarily used on pickup trucks, so utility, safety, and performance are key. At lower speeds, it turns in the opposite direction of the forward wheels to a maximum of 12°, decreasing the turning radius as much as 21% (on the Silverado 2500 / Sierra 2500). At higher speeds the system will turn the rear wheels slightly in the direction of the front wheels so as to increase stability and control.The rear axle is based on the Dana 60
Dana 60
The Dana/Spicer Model 60 is an automotive axle manufactured by Dana Corp. and used in OEM "heavy duty" pickup applications by Chevrolet, Dodge, Chrysler, Jeep and Ford. There are rear axle and four wheel drive front steering versions of the Dana 60. It can be readily identified by its straight axle...
axle.
Vehicles that offer the upgrade include:
- Chevy Silverado / GMC Sierra modelsChevrolet SilveradoThe Chevrolet Silverado , is the latest line of full-size pickup trucks from General Motors.-History:...
Future
Although GM currently has complete control of Quadrasteer, Delphi insiders claim that there will be Quadrasteer systems on other pickup models in the near future. Since FordFord Motor Company
Ford Motor Company is an American multinational automaker based in Dearborn, Michigan, a suburb of Detroit. The automaker was founded by Henry Ford and incorporated on June 16, 1903. In addition to the Ford and Lincoln brands, Ford also owns a small stake in Mazda in Japan and Aston Martin in the UK...
decided not to proliferate on the system because it originally did not seem productive, the only models left are the Dodge Ram
Dodge Ram
The Dodge Ram is a full-size pickup truck manufactured by the Chrysler Group LLC. As of late 2010, it has been sold under the Ram Trucks brand. Previously, Ram was part of the Dodge lineup of light trucks...
, Toyota Tundra
Toyota Tundra
The Toyota Tundra is a full-size pickup truck introduced by Toyota in the year 2000. It was widely considered to be the first full-size import-brand truck built with an American look and feel and a refined V8 engine. The Tundra was eventually nominated for the North American Truck of the Year...
and Nissan Titan
Nissan Titan
The Nissan Titan introduced in 2004, is a full-size pickup truck produced for the North American market by Nissan. The truck shares the stretched Nissan F-Alpha platform with the Nissan Armada and Infiniti QX56 SUVs, and is manufactured in Canton, Mississippi, United States.-Market and sales:The...
.http://www.pickuptruck.com/html/stories/qs420/page1.html