As we've seen on other Chevy models, the ZR2 badge promises to "tame any trail" according to the automaker. Put another way, it's the low-hanging fruit on any high-end off-road pickup upgrade ...

But that’s just a good ol’ case of perspective rot, which set in sometime around the appearance of Chevy’s now-legendary ZR2 badge on its 1500 and 2500 trucks. A Z71? When the ZR2 exists?

These units take a different approach to damping than, say, the Chevy Colorado ZR2’s Multimatic DSSVs. I’ll let the guy who led the truck’s development explain: “What a Live Valve will do ...