No guarantee but likely the SC rear shocks are using the patented Nivomat technology. I was interested in it, read it, and this weekend had a chance to test it. The below pictures show the empty standard ride height 38”, then I loaded 960 lbs of softener salt it dropped to 35.5”. If felt “wiggly” in the rear as I pulled out, within a mile about it seemed to stabilize and the vehicle tightened up noticeably. After an 18 mile interstate run at 70mph I unloaded and the rear suspension was up to 36.5”. Pointless to state the specifics of what my QX56 can handle but its rear air leveling suspension can just level back out if I keep the tongue weight below 500ish lbs so I’m impressed with this system providing an inch lift with 1000 lbs in the bed. I doubt it’s design is supposed to lift to original ride height anyway. The bed lifted to 38 3/8” as soon as I unloaded, forgot the final pic but you’ll have to trust that after 3 miles to the next store it had settled back to right at 38”. Tire temperature for those interested stabilized quickly on the interstate at 39psi indicating around a 25ish degree increase in tire temprature.
Maz
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