This is a pair of 1928-1931 Model A Ford Rear Coil Over Upper Mounts.  On the modern style Model A (with 2" kick-up) they mount on the top outside of the rear crossmember.  Complete with bumper bracket mounting holes if needed.

They also make great universals for almost any installation.  Many builders have fabricated a rear crossmember and positioned these mounts as needed for an easy and quick installation.

Sold in pairs these mounts supply you with the proper set back to eliminate interference with the coil over top.  Check out photo's 7 8 9.  Complete with threaded bungs, 5/8" bolts, and washers.