Dart 8 1/4 to D60 lots oh stuff to figure out

Jimmy said
I was a little confused by a couple things.
8 3/4
Pass axle tube from C/L 27.46875 26.1875 2.5625 D60
Pass axle length 28.375 27.125

is this the difference between the two side if measured from the pinion center? I assume so but I didn't want to pretend to know.

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?

Jimmy said
If the axle is truly the same total length and I am moving the perches inboard do I really need to shorten the sides? Wont that bring the wheels closer to the inside? I don't really want that, they are already 5.5 bs and I have plenty of clearance to the fender. so the only real question is will the universal joint line up with the drive shaft if the dana is left uncut and the wheels are centered in the wells? If not how do I maintain the overall length and move the center section?

oh and the numbers were from sheet, it's a Dana 60 HD from 89 3/4 ton not sure of total length my notes are in my garage on the other side of town.

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.