Well when the manufactures change the engines that much it's hard to keep up. According to 'Mitchel' it's what I found. The 4 & 8 is listed, then I found the 3.8L & 4.3L and they are 1-6-5-4-3-2, then it says all other V-6 engines will be 1-2-3-4-5-6. So I guess that's the best I can do. If it is the LZ4 or the LZE engine, this is correct. That can be found in the glove box, sticker.