Yeah I have been researching fixing this same problem. I took my drive shaft loose on the rear end yesterday actually and turned it a half turn on the rear end side to see if that would help anything, and nothing at all changed. I cannot get the u-joints to budge at all, they seem firm and strong as ever, I guess I will take off the drive shaft and do the check you mentioned this weekend. How much is a replacement, or should we upgrade? Should I remove my 3rd member and have the gear mesh or adjustments or shims or whatever that is they can adjust before investing in a new driveshaft? I had my diffs rebuilt when I put the new 4.77s in, and the grinding was not that noticeable, but the problem was WAY worse when I put the 2" spacers in on top of the 912s. The 912s by themselves were not that bad, the sound was bareable, now it sounds like a tank everytime I let off the accelerator.
Hmmm.....: http://cardone.com/english/club/Prod...%2065-0001.pdf
http://www.amazon.com/A1-Cardone-659.../dp/B000C45E5U (rebuilt driveshaft for $365)
http://www.isuzuparts.com/partscat.html (new driveshaft for $616)
I found 2 driveline places here in Houston ( http://www.houstondrivetrain.com/ , http://www.ctdriveshafts.com/ ), I am going to ask them how much they would charge to check mine out if I took it off and brought it to them. NOTE: if you take it off make sure you use the emergency brake! Especially if you are running 2wd like me at the momentDon't want any roll away VX's, and it is super easy to take off and put back on.
Adjusting the pinion angle actually might be the easiest fix all you would need to purchase are these 2 items:
https://www.independent4x.com/mercha...roducts_id=481 (adjustable lower links $450)
https://www.independent4x.com/mercha...products_id=50 (adjustable upper link for $220)
Installation would be no problem, but guessing what the correct angle should be (aka how much difference in length from the stock links and the new adjustable one's and which should be shorter and which should be longer)? Uh I haven't a clue, should we try to get back to the stock angle? What is that? What is our current angle with lift?
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