Hello all. Just saw your question. So I recently bought a 2017 gmc Sierra at4 1500k 4x4. It came with a 6inch Pro comp lift kit installed already. It's a nice kit rides smooth turning is affected a little and with the 35s I have they do rub very lightly when making tight turns. I see one spot is towards the cab bottom inside fender well on 1 bolt head I will modify this later but it's nice kit.