U-Haul: Wardrobe Box
I use these to ship 70-71 highback buckets. The seats fit almost right on the money 69 style. Take tracks off if sending those and put them in another box/wrapped in cardboard placed inside the wardrobe box.
Cut the excess above off the box to make height shorter. Works great and greyhound takes them no problem. I was told by my local greyhound guy, no more unboxed stuff.
One box for 2 seats.
