Whether you lift your rig 3” or lower it 1” the caster will be out of factory specifications. These joints also have rubber isolation to retain OE levels for Noise, Vibration, and Harshness (NVH). 2000 - 06 For Chevrolet Suburban 1500 RWD/4WD.
I put these on a 2003 GMC Yukon that has the fabtech 6” performance lift. I was having alignment issues with my camber being maxed out. These made it a easy fix.