1993 Pontiac Firebird Owner's Manual - Page 260

NOTICE: I Used Replacement Wheels A - . ,hicle is dangerous. You can't Wting a used wheel on your now how it's been used or how many miles it's been driven. It could fail suddenly and cause an accident. If you have to replace a wheel use a new GM original equipment wheel. If your Pontiac has P235/55RI6or P245/5OZR16 size tires, don't use tire chains; they can damage your vehicle. If you have other tires, use tire chains only when you must, Use only SAE Class "S'type chains that are the proper size for your tires. Install them on the rear tires and tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer's instructions. If you can hear the chains contacting your vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast with chains on will damage your vehicle.