The Rough Country 2 inch levelling spacer isnt actually 2 inches thick, its only about 1 inch thick which i think is causing some confusion. The OEM fittings just fit with the Rough Country 2 inch spacer (which is 1 inch thick). Using anything larger than the 1inch thick spacer (which translates to 2inch lift) will cause other issues like the OEM air fittings not working, bad CV angles and interference between the strut and wiring harness.
This is correct a 2" lift spacer is not 2" its less, My 1-1/2" Rough Country spacer was actually 1-1/4"
I ended up grinding the end of the oem strut bolts to clear the bolts in the spacer. on my 2020my oem air line was not going to clear so it might be a case by case basis
Once you come up with your spacer design I would love to see it I plan to go this route ultimately for the increase in ground clearance and down travel. I would also really appreciate if you wouldn’t mind measuring your links for me so I could copy them to make my own I would greatly appreciate it
The link topic has been covered on this fourm heres a link Guide to QuadraLift DIY Links for...