Description

The Chevrolet Express van knob swap for the A/C controls is a common mod. This allows you to print a matching knob for your light switch. 3MF Notes : The base file uses ABS as the primary filament. ABS or better is recommended due to the temperatures inside the cab. An AMS is required.  Assembly: Remove the light switch assembly from the truck. Remove the light switch cover by gently lifting the three tabs around the edge. Insert a small flathead screwdriver through the hole at the base of the knob. Position the tip of the screwdriver through the small opening in the knob shaft. Apply pressure to the switch shaft while gently prying upward. The knob should pop off without damaging the switch shaft. Slide the replacement knob onto the shaft. Using a soft surface, press the knob firmly into place. Reinstall the light switch cover. Reinstall the light switch assembly into the truck. Version History: V1.0 - 2026-08-12 - Test fit completed and fitment confirmed. V1.1 - 2026-08-18 - Adjusted shaft height to match the OEM offset. V1.2 - 2026-08-20 - Adjusted print profile to make brighter colors (such as white and pink) appear more prominent against the black knob. V1.3 - 2026-08-24 - Changed the print profile to use a flat plate for a more reflective surface.