I'm amazed how ridiculous is the stock front suspension downtravel on these trucks. I initially measured for reference exactly 1,5" when I had the 3" front spacers installed with RC forged UCAs, difference from hub to fender. This was without the bumpstop rubber, UCA was resting on the chassis. I thought that the quite poor ride quality was due to that.
So I decided to lower the truck to get a bit more downtravel, to 2.25" (readylift). And to my surprise I didn't get that 3/4 inch back in downtravel... No...only a mere 1/5" more ! And the UCA wasn't even touching the bumpstop ! Strut was simply bottomed out...So my 2.4t 20feet long 4x4 truck has hardly 2,4" of downtravel on its front struts. Lol. Even my business car Kia Sportage has more wheel travel...This is maybe explained by the so stiff springs they have. They hardly compress when jacking down. Then I did put back the rubber bumpstops but these are only slightly in contact with the UCAs. So with a 2 inch level kit on stock UCA I guess that full downtravel is still almost here, that's why ride quality isn't too much impacted.
Know I just need to find longer/smoother springs...but impossible to find the spring rate on mine.