{"product_id":"raybestos-wc37779-rear-drum-brake-wheel-cylinder","title":"Raybestos WC37779 Rear Drum Brake Wheel Cylinder","description":"\u003cdiv\u003e\u003cp\u003eRaybestos WC37779 PG Plus Professional Grade rear drum brake wheel cylinder provides reliable hydraulic actuation for GM rear drum brake systems. It is listed as compatible with select models, including 1988–1990 Chevrolet Celebrity and 1988–1992 Buick Century, with additional catalog entries confirming fitment on the 1990–1991 Oldsmobile Silhouette. In several listings, WC37779 is associated with the Raybestos Element3 replacement line and is shown as replacing 2037779, reflecting cross-reference within Raybestos’ wheel-cylinder lineup. This rear wheel cylinder is designed for use in drum brake configurations, where feed from the master cylinder translates into movement of the rear brake shoes pressing against the drum to slow or stop the vehicle. By matching the specified fitment, the WC37779 aims to restore proper hydraulic actuation and braking balance for the rear axle in affected GM applications. \u003c\/p\u003e\u003c\/div\u003e","brand":"Raybestos","offers":[{"title":"New","offer_id":46285523124458,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-024.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/raybestos-wc37779-rear-drum-brake-wheel-cylinder","provider":"GTG Hardware","version":"1.0","type":"link"}