the national transport guideline to vehicle modification and "Vehicle Standards Bulliten 14"
https://vicroads-search.clients.funnelb ... y=4wd+liftpage 7 of the bulletin above.
OR
look up your stock vehicle wheel plackard and height - check it in "willtheyfit.com" against the size you're running
read up on VSB14 preface to LS09 and LS10 (the 50mm lift made from total of suspension and body blocks, plus additional 25mm tyre lift section)
it's very clear once you know the original height of your vehicle and tyre size.