Tech Info >> Core Exchanges & Core Conversions >> Pitfalls > Problems happen. Fortunately, we've made a page dedicated to helping eliminate or at the very least, lessen the rate at which they occur. Consider this a basic briefing where we will describe and illustrate the common problems and how you can better prepare yourself so that these problems do not occur. Pitfalls: Avoiding Problems During the Core Exchange Process Broken Mounting Tab - Not Acceptable This can happen due to insufficient packaging, such as not enough bubble wrap or void filling. Broken Locating Pin - Not Acceptable This can happen due to insufficient packaging, such as not enough bubble wrap or void filling. Crazed Lensing - Not Acceptable Due to extreme weathering and/or neglect. Improper cleaning due to harsh chemicals, solvents or cleaners. Damaged Bezel - Not Acceptable This can happen to lights that have had excessive wear and tear. It can also happen if the user has installed over-wattage bulbs due to the additional heat. Split Mounting Tab - Not Acceptable This typically happens when an installer applies excessive torque during installation. Water Damage - Not Acceptable If the headlight suffers from water leakage and the owner neglects to repair the light. Yellowed Lensing - Acceptable This falls into the category of typical wear and tear.