So we are assembling our '96 Chevrolet Detroit diesel engine (some of you may have heard about the truck that we rebuilt, and it broke down again) and I went a little past the point of the rocker arm assembly, and I read in a manual or something, that you have to turn the push rods a certain direction as one end is harder than the other. It said to keep them oriented in a same direction for reassembly, but we didn't know so they are all messed up. And I have no clue how to determine that. Please help me out as I can't find any thing online. So I would appreciate your help. Thank you.