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No matter the condition of your 1966 Grand Prix, OPGI offers forty-seven Differential & Rear-End Component related parts to boost performance and get your 1966 Grand Prix back on the road. Choose from trusted brands like Prothane, ARP and Auburn Gear, with prices ranging from $5.99 to $1,029.99, all backed by our Price Match Guarantee. With OPGI’s 60-day return policy and thousands of verified reviews, you can shop confidently for your 1966 Grand Prix restoration. Enjoy fast shipping directly to your home, or visit our Southern California Showroom & Warehouse to see our Differential & Rear-End Component related parts in person.
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