Hello all. Got a 2012 with a 6.2. Truck has AFM. Doing a cam swap. I jumped the gun and did not bring the motor to TDC before starting the tear down. Since i was doing a new cam and chain anyway i figured i would that before the install. So now im confused. Got my new cam in already. The cam phaser/ vvt timing gear/ flux capacitor sprocket or camshaft timing chain gear as it used to be called has to two marks on it. One is a square box with an arrow tip one is just a straight line... What mark is used to line up with the crank gear ? Also is the crank gear/ oil pump drive gear keyway the timing mark to alighn with on the crank ? Sure wish i would have slowed down a little and looked first. Thanks in advance for the help..