After a good clean, I removed the input drive coupling with its 6 coupling bolts by undoing the centre lock bolt and sliding it off the shaft. I could then clean behind and around the area.
I measured the shims and replaced them exactly where they came from and then adjusted them to .003” to .005” on each one except the declutch unit which is set at ZERO. Something to keep in mind is that the thickness of the shims must be equal on both sides of the idler shaft.
A straight edge was used to make sure the gears were below the casing so that they would not rub on the cover. The detente spring should be checked and the ball examined to make sure that it will locate correctly.
New transfer case insulators were required and these were cut out of neoprene sheet.
Not much chance of making an error with this one marked 'OUTSIDE"
Once again I was able to purchase all the bearings and seals over the counter and I is lucky that I have a trade account otherwise it would have cost a H#!l of a lot more.