YOU CAN'T HAVE DIFFERENT BEARING AT DIFFERENT LOCATIONS! It is like trying to make a curved line straight. I have asked everyone from parts people to engine rebuilders to clear up this misconception. NOONE has been able to answer to my satisfaction why would anyone change a bearing thickness in an engine. It throws the geometry of a balance by the wayside. The only reason I can find is that the hardness might a factor. Besides even the factory manual says plastic-guage everything. But I found that the process marks the bearing and it cannot be removed from the babit of the bearing with some disruption of the material. Soooo just make sure everything is measured accurately and plastic guage as little as possible. Mrbeenjamin By the way the weight of the rods on the hondas is within a few grams. That is the closest to the same as I have seen in many engines from all manufactures.