Originally Posted by Ironman
As a side note to this tech, do not confuse a Dana 61 for a 60. Easy to do as they are identical from all outward appearences. The difference is the pinion offset in the 61 is off by .25 - .375 or so.
That's not completely true. The Dana 61 can use either a Dana 60 or a Dana 61 gear set. This is not to say that they are interchangeable, but rather some Dana 61's used a Dana 60 gear set, which could not be replaced with a Dana 61 gear set, and vice versa.