Aj here are the figures from the link you provided
Standard car will be of order of 900mm to guards from ground - rear
slightly higher than front also car should be level on each side
within about 10mm when parked on flat surface.
GQ lift heights
standard rear bumpstops ~ 75mm
2" lift 125mm
3" lift 150mm
4" lift 175mm
5" lift 200mm
6" lift 225mm
All plus or minus 10 to 15mm depending on options etc.
Bazzle
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roof height is listed as: wagon 1818mm, swb 1825mm
so going by those figures mine is 980mm from ground 110mm at bumpstops and if meassured correctly my roof hight is 1820
anyways from what everyone has posted and people i have spoken to it looks like mine has sagged about 1/2"