I am a little bit concern about the noise on my 426 2002, it runs great. last time I change the oil I found some metal particles on the oil filter, I want to be sure that the balancer gear nut and the clutch basket nut are not loose,My question is how hard is to get to the balancer gear nut? Do I have to go through the water pump? I have worked on the clutch but that"about it. Any special tools required?