We are in the process of selling our house, so I may not get to pictures right away, but I will get a few snapped and posted for you before long. I peeled off the trim, it was held on top and bottom with about a 1/2" piece of adhesive. I took an eraser wheel in a cordless drill and went to town on it, being careful not to let it get too hot, move it around often, etc. I went back over it with a very soft cloth (like a polishing cloth) and goo gone, just to get any debris or adhesive off. Now it looks great, I even took the "SLT" emblems on the pillars right behind the back doors.
Ok... I took off every GMC and Yukon emblem on the thing.. only one I am working on a cover for is the front grill, I am going to create a rounded rectangle out of carbon fiber to cover it up also.
Sad part about all of this? I have that smokey caramel colored Yukon and dislike the color.