I ran.car out of oil now knocks and need to change rod bearings I'm told how do

This is Kevin with NWA Auto Shop. Without seeing the vehicle, I can only theorize. Based on the limited information given, these are my thoughts. A) We use a tool called Direct Hit - Identifix for the information we need. It allows access to the Manufacturer repair manuals. It is $179 or so for each month you need it. You can also get a Mitchell, Haynes or other aftermarket repair manual online or at the parts supplier you use. Kevin