As I recall, the trimmed corners of the rod caps face away from each other, and the rods all go "flat to flat". If you look at the rods, you will see that the rods have a bevelled side and a flat side to each of them. Hopefully, your caps have remained with their rods. I would be concerned about mix and match on the caps if the motor was apart and tossed into a pile. I would have the rods and caps resized if they have been mixed up. Thanks, Counterman.