Will 18 inch tires fit on a 85 Cadillac hearse?

To determine if 18-inch tires will fit on an 1985 Cadillac hearse, you need to consider the wheel well clearance, bolt pattern, and overall diameter of the new tires compared to the original size. Most Cadillac hearses from that era were designed for larger wheels, typically ranging from 15 to 17 inches. Installing 18-inch tires may require modifications to the suspension or wheel wells. It's best to consult a tire specialist or refer to the vehicle's specifications for compatibility.