Newbie - first real post I have been lurking the site for a while and thought it was time for my first real post. Did a search on this topic and found some info but, not being a mechanic, I could not piece a solid answer together. I have an '87 60 - stock (for the most part, just a few mods but non-running gear related) Just to keep things lubricated, I was told to lock the hubs and engage 4x4 hi and low. Did this around town tring to avoid any sharp turns (I heard you can blow up your t-case doing this). I had a to make a semi-sharp turn and heard some poping. Do I need to maintenance something, fix or replace something?? Or is this normal and a sign to back off the turn so I dont break something?? Thoughts? Things I can check? I am trying to become a "do it yourselfer" so any help would be great. BTW - THIS SITE RULES!!! Thanks to all those who post and help those in need!