A new front suspension uses lightweight composite upper control arms and aluminum lower control arms, with hollow stabilizer bars to save weight; moving the front stabilizer bar behind the front tires increased roll stiffness by 20 %. (allpar.com)
The chassis is 0.6 inch lower, new Koni FSD shocks help increase roll stiffness 40 percent front and rear, there is a 0.9 - degree increase in front - end negative camber and the rear suspension gets an antiroll bar where none existed before. (autoweek.com)
For the 2015 redesign, they worked on increasing roll stiffness, so the Suburban leans less in corners. (phillipschevy.com)