i really need some help

me not being too familiar with nissan, i thin kyou'd most likely have to find one in a scrap yard......IF that's the problem

i don't see low fluid being the culprit...i think that will just cause noise and wear....however....if you check your fluid and it's low, top 'er off and see what happens......best case you've solved it. worst case, if it's low, it has caused damage...either way, if the fluid is low and topping off doesn't fix it, then you're in for a tear-down