Well, I finally broke down and bought a set of the new EH seats for my lla from our hosts. My truck originally had them but were in bad shape and had been badly recovered. The new fabric is not exactly like the originals. Looks close at a glance but seems lighter in weight and not as textured. In any case, I needed to reinstall the non-adjustable seat frames. Each seat back comes with two sets of bolts to attach to the frames but, of course, no instructions. One set of bolts is "shouldered" and definitely does not fit into the frames. The seatbacks themselves do not even have a bolt hole. I can feel an indent under the fabric which I'm assuming I poke a hole in(?). From what I remember, each original EH seatback had studs which fit into the frame. Is my memory impaired? Has anyone else recently bought these new seats? I do remember asking the salesperson if they had the studs and he said yes.