The possibility of installing a 17-inch rim and tire on a Thunderbird would depend on several factors, including the specific model and year of the Thunderbird, as well as the available clearance and compatibility of the vehicle's suspension and braking system.
In general, changing the rim size from the original specifications can have an impact on the overall performance and handling of the vehicle. It's important to consider factors such as the tire width, aspect ratio, and load rating to ensure they are appropriate for the vehicle and its intended use.
To determine if a 17-inch rim and tire would be suitable for your Thunderbird, I would recommend consulting the vehicle's owner's manual or reaching out to a professional tire and rim specialist or the manufacturer for accurate information specific to your Thunderbird model. They will be able to provide guidance on the maximum rim size that can be safely installed on your vehicle and any other considerations you should keep in mind.