The axle tubes will be 1 3/8" longer on drivers side as well. It's how you get the mopar drivetrain offset, 1 3/16" IIRC, in a D60 rear.
I bought a D60 that was in a Camaro a long time ago, hoping I could easily put it in a Duster cause it was the right width. Ended up having to cut it to make it work.
Here's a link from a mag article where they addressed it but didn't appear to explain the actual observed measurements.