Shipping a Complete 8 3/4" Rear Axle Assembly

Ship it USPS! Take it apart.
-Housing and axles get wrapped in cardboard, sent in two packages.
-Chunk gets wrapped in cardboard. If it's open, it weighs right at the 70 pound limit minus the pinion snubber and drainplug. If it's a SG, take it apart and send in two large flat rate boxes.
-Backing plates and drums go in two more flat rate boxes.
I do this all the time...your cost for that trip should be less than $150 total, and you do it right from your PO!