No matter the condition of your 1966 GTO, OPGI has the Keys & Locks you need to boost performance and get you back on the road. We currently carry 46 Keys & Locks to choose from for your 1966 GTO, and our Price Match Guaranteed prices range from as little as $1.90 up to $402.99. OPGI offers RESTOPARTS plus one other trusted brands of Keys & Locks for your 1966 GTO, to help you find quality parts you can rely on. With OPGI's 45-day return policy and thousands of customer reviews, you can shop with the utmost confidence. Enjoy parts delivered directly to your home, or visit our sunny Southern California Showroom & Warehouse to check out our Keys & Locks in person.