Lone Star Parts Direct. LT, WT, Z71, ZR2. 2.5L L4 – Gas, 2.8L L4 – Diesel, 3.6L V6 – Gas. AT4, Denali, Elevation, Elevation Standard. Base, LT, WT, Z71, ZR2. All Terrain, Base, Denali, SL, SLE, SLT. Base, Denali, SL, SLE, SLT. Base, LT, WT, Z71. Base, SL, SLE, SLT. 2.5L L4 – Gas, 3.6L V6 – Gas. Located in DFW Texas, we sale genuine NEW OEM ACDelco/General Motors parts at the best prices around. IF YOU NEED A PART WE DO NOT HAVE LISTED PLEASE MESSAGE US THE PART NUMBER AND WE MAY BE ABLE TO SOURCE IT FOR YOU! Items must still be new, not at all damaged or tampered with, never installed and with all original packaging. Otherwise, we may deduct for loss of value. We may also be able to send out a replacement part under certain circumstances. We do not offer any warranties or imply that any warranties exist on our products.