Also change your diff fluid, especially if you are up to your axles in water often, it's cheap and easy to do. You don't need to do your diff every oil change, but it's a good habit. My two cents.
Also change your diff fluid, especially if you are up to your axles in water often, it's cheap and easy to do. You don't need to do your diff every oil change, but it's a good habit. My two cents.