Replacing front driveshaft

I need to replace front driveshaft. Repairing mine is not an option. A piece is chipped off the yoke, unfortunately it wasn't on the yoke flange which would have been much simpler a repair.
I bought a used driveshaft from a salvage yard. It's off a newer model then mine and from all the info have read and by physically laying them side by side they are almost identical. Only difference I can see are what I believe are the balancing weights (1x1 in squares) are welded on the driveshaft I bought, unlike on the one from my truck just has somewhat smaller and round what I'm guessing are weights.
Lastly I plan to replace both U joints before I install it.
So my first question is, should I have the driveshaft professionally balanced before installing?
My second question is, do I risk any damage to either the xfer case or front differential by not having it balanced before I install it?
Thank you in advance for any answers, advice or recommendation's.

RH