Thrilled to find this thread, thanks for posting!
Rather than start an entirely different thread, I figure I'll just plop my question here: PO says he installed a 4" Zone lift, though I'm not sure on which components, specifically. However, I measured my spring heights yesterday and got: Front Driver 16" / Front Passenger 16"; Rear Driver 11.75" / Rear Passenger 11.5".
I'm assuming this is within a reasonable margin of error relative to the measurements at the top of the thread, but just want to make sure, particularly the rear measurements as I prepare to install a barricade rear bumper and tire mount. Thanks in advance!