Ok I tried to find a clear picture of the timing marks for a 2009 LT Aveo the pictures onlines do not show clear as to what is under the huge arrows. one gear has a circluar bump and other has a small circle indent are these the two that are suppose to line up together in the middle? Anyone has a clear picture from repair manual that shows the actual gears and the exact marks both have lot differnt marks on them but which marks are suppose to lineup? Thanks for your help. I found another picture online and hear is what my gear look like minus that red thing in middle. Only thing the information says it is for a 1.8 4 cylinder. It also shows some marks on cam sprocket that suppose to lineup as well is this more like mine?