Ring rear bolts loc tighted and torqued. New posi clutches installed and shimmed properly. FYI, don't just put the same shims in behind the clutches and expect them to be set up correct. Its a long procedure (too long for me to explain on here) and there is only one video that I've found that shows you the correct way. It's on You Tube and it's by Tom's Differential. Here's the link
https://www.youtube.com/watch?v=CGq15JBBUQw
Hope this helps someone.