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No matter the condition of your 2003 CTS, OPGI offers fifteen Differential & Rear-End Component related parts to boost performance and get your 2003 CTS back on the road. Choose from trusted brands like Prothane and AC Delco, with prices ranging from $6.99 to $29.99, 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 2003 CTS 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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