1993 Chevrolet Corvette Owner's Manual - Page 285

Sewice & Appearance Care r . .: ;. ... - . When It's Time.for New Tires One way to tell whenit's time fornew tires is to check the treadwear indicators, which will appear when your tires have only%2 inch (1.6 mm) or less of tread remaining. You need a new tire if: * You can see the indicators at three places around the tire. You can see cordor fabric showing through the tire's rubber. The tread or sidewallis cracked, cut or snagggd deep enough to show cord or fabric. The tire has a bump, bulge or split. The tire has a puncture, cut or other damage that can't he repaired well because of the size or location of the damage. Buying New Tires To find out what kind and size of tires you need, look at the Tire-Loading Information label. The tires installed on your vehicle when it was newhad a Tire Per€omance Criteria Specification (TPC Spec) numberon each tire's sidewall. Whenyou get new tires, get ones with that s m e TPC Spec number. That way, your vehicle continue to will have tires that are designed to give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. If your tires have an all-season tread design, the TPC Spec number be will followed by an "MS" mud and (for snow). If yuu everreplace your tires with those ,not having a TPC Spec number, make SLUT they are the same size, load range, speed rating and construction type (bias, bias-belted or radial) as your original tires. G