I just installed a new 4.2 long block. I have the timing gear marks set at TDC but how do I reinstall the oil pump shaft and camshaft gear and sensor and get it set correctly? I don't see any identifying marks once I remove the two screws and electronic sensor? I'm sure it's simple, but I don't see it?

 

There is a small tool that fits over the top of the camshaft position sensor shaft and you use it to alight the gears with the camshaft.