Did you adjust the proper front and rear driveshaft angles?
You have an SYE, for the rear but were the proper axle shims installed.
There is a lot information about this on the site if you use the search function.
The front axle pinion angle should to be set to 1 degree or less, do this with the caster adjustment.
If you have a LP D30, it is near impossible to get it right if lifted 4" or more. In that case, the pinion angle is more important.