Double Cardan/CV joint

[akart]

1982 K20. I rebuilt this joint,new parts,also replaced the front U joint. I have a vibration from the front shaft while in 4wd. The front slip joint was not removed from the shaft so it is not out of phase. "But" I may not have gotten the parts in the CV joint in the same order as I did not mark them. Can this cause the vibes? Do I take the CV joint apart and try different assembly combinations or can my drive line shop balance what I have? There is a weight on the shaft.This shaft which I rebuilt was not the original as the original one was missing.