I considered this also, but get a little wary of what WD-40 and PB Blaster can do to rubber. Also, the amount of travel in the slip yoke with changing the AHC height is not much. I think most driveshaft travel comes from suspension movement while driving. Remember that the diffs also go up and...
Completely agree, much more useful than many other threads about this topic. Would personally nominate some portion of it, probably @2001LC 's description and video to be in the FAQ as, although it's not complicated, there's much discussion about this obviously and pics and videos are...