Hi Jake - I am interested in using Bilstein 5100's as well to lift the front of my Tahoe. What part number Bilsteins did you use? I could only find Bilsteins for a 17' Tahoe that went up to 1.75" and not 2.5"? Did you keep the rear stock height? I was contemplating a 2.5" in the front with a 1" rear spacer.