THE FIRST THING YOU SHOULD DO:
Make sure the VX is in 4H and park, crawl under the VX and try to move the front drive shaft. There should not be much play to it at all. A good healthy VX only has about 1/2" of turn (play) if any at all. If one of the CV's is blown or needing attention you will have quite a bit of loose feeling when you turn the shaft. If there is any weird noises or you can easily turn the front shaft (thing that attaches the TOD transfer case to the Differential) then you have CV issues. When my CV was blown I had about an inch of play. Checked someone else's VX at a meet and it had no play at all in the front drive shaft. After I replaced the front CV with the rebuilt one, I was close to no movement at all, but it still moved slightly, and then I came to learn that because I had driven around with the blown CV for so long it had damaged the Cup that goes into the Diff,
and so I have this sitting in the garage to do as soon as Aamco is done fixing there mistakes that should've been fixed 2 and a half years ago when they first rebuilt my tranny.
Lisa I can do the CV swap in about an hour now, but the differential short shaft cup (green inner cup) swap that goes into the Diff will take me a while at least a weekend or more, I have to drop my front diff again and this time I am going to replace both front seals. I don't mind doing this with some help, but it is a pain and I would rather do that in my garage at home, I have already done it once and have all the photos ready to post, but I have been super busy here lately.