Correct. The first numbers are from Axle C/L as labeled, the other set is the pinion centerline with the 2.5625 being sort of a check number for the difference.
If you are doing a Dana why are you messing with the 8.75 section?
The Dana 60 MUST have the drivers tube 1 3/8" longer than the pass side in order to get your pinion centerline in the correct location for a mopar. If you make the tubes the same length the pinion will be too far to the drivers side. Don't use the 8.75 stuff if you are working with a Dana 60.
I don't know what length of your 60hd. It's got to be long enough to get where you want or it isn't suitable.