the noise you folks are hearing is the loose slip yoke...
As driveline rotational speed increases, the loose fit parts start to swing in an egg-shapped motion...
Changing the Pinion angle will help, but you only need the adjustable upper link or lower links, (u don't need both, unless you just want them)...This really JUST helps the angle on the REAR u-joint, and does not help the actual driveline angle much at all, mabey less than 1 degree!!! (Although the splines would have a SLIGHT slip-depth davantage)
And you will STILL have the problem untill you replace the rear driveline....
I run 919 springs, which give almost 5" of lift... So my rear driveline angle is a noticeably steeper than stock.
Like I said, remove it for inspection and you'll see what I mean...
Your local driveline shop should be able to install a new slip yoke, on your driveline for a couple hundred....Make sure the new splines they use are At LEAST as long as the stock VX one...longer is betteras it allows more spline contact area....
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