Would definitely call the folks at Cognito to get your answers. This kit does say its compatible with most OEM tires and wheels but depending what wheel/tire combo you plan to run, they can tell you whether it'll work and if or how much trimming might be needed.
Installed the GM OEM 2" lift (made my SLT a Faux AT4) and then added the Toyo Open country AT3 295/65 R20 with 1" wheel spacers on front, 2" cognito level and SM series UCAs (which gave it a 2.75 Carolina squat) so added Airlift bags in rear and Bilstein 5100 front (on lowest setting) and rear... on pavement at full lock rubs slightly after trimming lower rubber valence and plastic on front lower fenders... and pulled the wheel well liners back with zip ties.. before going off road though the front wheel wells will need the rear mud flaps trimmed and the lower front liner brackets removed....
