I just got my new timing chain cover today, and its time to bolt this sucker on and do some drivin. I bought the Gasket kit, and it came with all the neccesary gaskets but i think there is a few i dont need in there, does that seem right? All i need is the Gasket that seals between the timing chain cover and the block as well as the timing chain cover and the water pump right? Also theres that metal circular thing "sorry i dont know what its called" i cannot get that thing on for the life of me how does it go on, i greased it up and tryed to hit it with a rubber mallet, and its goin nowhere.. help me