I should know this....
I have OME medium springs front and rear with cornfeds in front. Total lift is a little over 1.5".
Can I install Addco sway bars on a lifted vehicle?

 

Yes, however (I could be wrong) but I think you may need longer end links. I know that you can purchase Rockstomper's discos at different lengths for different size lifted vehicles so a reasonable assumption would be that longer end links are a good thing or maybe even necessary right? I don't know if with only 1.5" it is necessary though. Maybe get in contact with Jalaber, he seems to be the expert on the Addcos, I'm just guessing for the most part... :alien:

 

Yes you can install a front Addco with a 1.5" lift. To compensate for the lift many have ordered Nuke's disconnecting end links custom made for the exact amount of lift you have....in your case order a set 1.5" lonmger than stock.