Upgrading the headlights on a Jeep Cherokee XJ is a popular modification that can improve visibility and provide a custom look. Below are some steps to upgrade the headlights on a 1984-2001 Jeep Cherokee XJ.

Choose the right headlights: There are several different headlight options available for the Jeep Cherokee XJ, including
Jeep Cherokee XJ LED headlights, halogen headlights, and HID headlights. Choose the right headlight type based on your needs and budget.
Purchase the necessary components: You will need to purchase the new headlights, wiring harnesses, and any additional components necessary for installation.
Remove the old headlights: To install the new headlights, you will need to remove the old headlights. This typically involves removing screws and clips that secure the headlight assembly in place.
Install the new headlights: After the old headlights are removed, you can install the new headlights. Follow the instructions provided with the new headlights and connect the wiring harnesses as needed.
Adjust the headlights: After the new headlights are installed, you may need to adjust them to ensure proper alignment.
Test the headlights: Once the installation is complete, test the headlights to make sure they are working properly.
Upgrading the headlights on a Jeep Cherokee XJ is a relatively straightforward process that can be completed with basic hand tools. However, if you are not comfortable with the installation process, it is recommended that you have the work done by a professional mechanic.