6 62pan Senior Member Aug 7, 2021 #1 The rear main bearing in my 59 block is marked A2. I see standard would be 81A - 6331A. I see different codes in the green book but nothing for A2. Anyone know what this means. The crank measures standard.
The rear main bearing in my 59 block is marked A2. I see standard would be 81A - 6331A. I see different codes in the green book but nothing for A2. Anyone know what this means. The crank measures standard.
