Quadrasteer

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A GMC Sierra Denali equipped with Quadrasteer, rear steering angle

Quadrasteer is the name of a four wheel steering system developed by Delphi Automotive 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 through 2005.[1]

Such a system can be a useful feature to people who tow regularly, as it enables a person to turn their vehicle in tighter spaces than if they had a regular steering system, it added as much as $7,000 initially to the price of the vehicle. Through time, the cost was lowered to $5,600, $2,000 and eventually $1,000 in order to boost sales; the steering system was popular for people who frequently tow boats, fifth wheels, or other large equipment.[1][2]

Mechanics[edit]

The system was primarily used on pickup trucks. At lower speeds, it turns in opposite direction of the forward wheels to a maximum of 15°, or 12° in trailer mode, decreasing the turning radius as much as 21%. 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 axle.

Vehicles that offered the upgrade include:

See also[edit]

References[edit]

  1. ^ a b Adlen, Nathan. "Truck Rewind: Chevy and GMC Quadrasteer - Turning on a Forgotten Dime - The Fast Lane Truck". www.tfltruck.com. Retrieved 2019-03-27.
  2. ^ Andrew Ganz Senior Editor. "Rear-wheel steering could radically change pickup trucks and SUVs". The Car Connection. Retrieved 2019-03-27.CS1 maint: Extra text: authors list (link)

External links[edit]