Oh OK, I should be measuring the "gap" like a plug gap or any gap & not overcomplicate it. those specs were in the Moparts archives. I just saw 2 utube vids & one said front- 4 turns out from snug/rear 2 turns and another vid said start from snug then back off till driveshaft will turn barely by hand then loose another 1/2 turn & same on the other band ex the shaft will be turned the other way (I've read that (last) procedure before).