Greetings everyone. Purchased my 89 SHO with approx. 130,000 miles. Previous owner had no idea when timing belt was last replaced, or if ever to his knowledge. Is it possible to check condition of belt to determine if replacement is necessary, or should I continue to drive until it breaks? What's the worst case scenario if it goes while I'm driving, will it cause further internal engine damage i.e, cams, valves, etc.? Any help that could be provided will be greatly appreciated. Thanks for reading.