Thanks everyone! Yeah I did the diffs around 200 miles and I think I'm at about 400 miles now. Prolly just do the diffs at every oil change as it's so cheap and easy. While we are at it, how often should I be greasing the chassis? I power wash after every day out, have been greasing about once a month (every 3 times out or so) don't know if this is extremely overkill. Been riding through some water, but I try to avoid it if I can.