Since we are on the subject... Can anyone tell me about the rear attachments for the seats (where they bolt to floor)? On side A I had a bolt that screwed into a receiver clip. Side B had the same clip but instead of the bolt locking into the clip, it had a nut on the bottom. This nut was seized -- I had to cut the bolt. So, I am guessing the receiver clip for side A is correct? Would anyone have an extra one or know the P/N? Thanks...