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No matter the condition of your 1966 GTO, OPGI offers ten Harmonic Balancer related parts to boost performance and get your 1966 GTO back on the road. Choose from trusted brands like ARP, SCAT and General Motors, with prices ranging from $26.99 to $403.99, 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 GTO restoration. Enjoy fast shipping directly to your home, or visit our Southern California Showroom & Warehouse to see our Harmonic Balancer related parts in person.
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