Lateral driveshaft angle with Dana 60 swap.

[hula]

Swapping in a Dana 60 from a 1969 3/4 ton C20 2WD into my 1968 K20 4x4 that had an Eaton. Talked to the guy doing it at a differential shop and he said there may be a little lateral drive shaft angle being the differential may not center up. I'm going to look at it tomorrow while they fabricate the spring perches and shock mounts. Is there a maximum lateral angle for the drive shaft? Will rebalancing it be necessary?

Thanks