So eventually I want to do a 3.73 gear in my GT500, currently has a 3.31 and the gears are way too long. If the rear end currently makes no noise, car only has 61k, would I be fine just changing the gear and fluid? I'm thinking normally if you leave these rear ends alone they are good for 200k without anything really wearing or failing.

Thoughts? I don't want to change parts for the sake of changing things.....