No matter the condition of your 1959 Eldorado, OPGI has the Differential & Rear-End Components products you need to boost performance and get you back on the road. We currently carry seven Differential & Rear-End Components items to choose from for your 1959 Eldorado, and our Price Match Guaranteed prices range from as little as $8.38 up to $279.99. OPGI offers AC Delco plus two other trusted brands of Differential & Rear-End Components products for your 1959 Eldorado, to help you find quality parts you can rely on. With OPGI's 45-day return policy and three 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 Differential & Rear-End Components items in person.