If you are replacing your piston/sleeve, then it's logical to replace the Connecting Rod at the same time. Rods are replaced as a preventive and maintenance, meaning you should replace it before it breaks.
Are there measurement guidelines for replacing a connecting rod? For example, if it visually looks to be in good condition (no cracks or stress marks), are there specific measurements to help determine its replacement. Is there a guideline on measuring the bearing diameter and roundness to the crankshaft pin and piston pin?