The strut nuts on the 1st gen RX-7 are worn out and rusty. What did you think I was talking about? I run Tokico BZ1086 inserts. The nut on the right is the old one and the other one was a spare that came with the car but will not work. The threads are too long and the ID is too small.

Anyone know where and what part number for the one on the right.

TIA