Anyone had problems with oil leaking around the u-joint at the t-case and rear drive shaft. I noticed a little bit splattered on the underside of my truck and pinned it to that location. Doesn't seem to do it all the time just at high speed around 70 mph. Also on my rear axle I have a little oil seapage on the gear box housing. They look to be where it was welded to the axle There are 4 indentions 2 on front and 2 on the rear on either side of your cover and for some reason oil is seaping at those indentions. Anybody seen anything like this?