On my 85 22R engine my dumb ass friend lost my lower alt bolt (the long one) and I have tried the 10 mm too small, 12 mm too big, 3/8 too small, 7/16 too big. And the alt bracket is held on behind the motor mount and they use the same bolt so it would be a pain to take out and bring to the hardware store. Anybody have an extra bolt lying around that they could measure?