I guess I'll have to post some car stuff.
I got the crossmember in and am getting my buddy Brian Schien to machine some sliders for the torque arm. The original setup used a shackle like on the back of a leaf spring. The X through the middle of the car doesn't allow enough room for the shackle, so I designed a slider with roller bearings which will weld directly to the X. Should work pretty well, but we'll see.