We use 8.5 to 9" from axle tube to the bumpstop bracket which is a little above frame bottom which would say you have 1-1.5" of lift on it. Would be nice to find some actual stock vehicles but we measured this up years ago from a bunch of stock, intact trucks we had around and it works pretty good. It correlated nicely to the 3" lift on my '88 sub that ended up at 11 3/4". D60 fronts tend to push that to 9" or a bit more we figure.