{"product_id":"sonnax-billet-pinless-accumulator-piston-kit-for-4l60e","title":"Sonnax Billet Pinless Accumulator Piston Kit for 4L60e","description":"\u003cp\u003e\u003cstrong\u003eSonnax Billet Pinless Accumulator Piston Kit for 4L60e - 77998-03K\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e*Two required per transmission - if replacing both, please ensure you change the quantity to 2 when adding to your cart*\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"spaced-vertical\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"part-accordion cb spaced-vertical\"\u003e\n\u003cdiv id=\"components\"\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"spaced-vertical\"\u003e\n\u003cp\u003eIn the GM 4L60e, it is common to have poor shift quality, burnt bands or clutches due to accumulator piston wear. Repeated reciprocation of the accumulator piston causes wear at the piston pin bore interface. After this wear reaches a critical point, fluid loss through the piston pin bore cannot be compensated due to lack of pump volume. In addition, the piston can get cocked and gall the accumulator bore due to the pin bore wear or the spring bottoming out. To prevent these conditions in the 1-2 or 3-4 accumulator bores, Sonnax offers pinless accumulator piston kit 77998-03K.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePinless design eliminates the possibility of pin bore leakage and the additional length stabilizes the piston to prevent piston cocking\u003c\/li\u003e\n\u003cli\u003eDual seals stabilize and completely seal the bore and provide a tight seal even after thousands of cycles\u003c\/li\u003e\n\u003cli\u003eSteel balls plug existing pin bore in case or cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"part-accordion cb spaced-vertical\"\u003e\n\u003cdiv id=\"notes\"\u003e\n\u003cstrong\u003e\u003clabel for=\"notes-panel\"\u003eNote\u003c\/label\u003e\u003c\/strong\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cp\u003eSome late units use a single, small diameter spring in the 1-2 location. In this case, the spring can be discarded and replaced with Sonnax spring\u003cspan\u003e 74926\u003c\/span\u003e\u003ca href=\"https:\/\/www.sonnax.com\/parts\/1660-1-2-or-3-4-accumulator-spring\"\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"components\"\u003e\n\u003cstrong\u003e\u003clabel for=\"components-panel\"\u003eContents\u003c\/label\u003e\u003c\/strong\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eD-Ring\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eViton®\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003ePinless Accumulator Piston\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eAluminum\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eSeal\u003cspan\u003e \u003c\/span\u003e\u003ci\u003ePTFE\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eSteel Ball\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e.312\" dia.\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eSteel Ball\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e.236\" dia.\u003c\/i\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":46114758230214,"sku":"77998-03K","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/sonnax-sonnax-billet-pinless-accumulator-piston-kit-for-4l60e-1250727813.jpg?v=1784758152","url":"https:\/\/www.glennsautoperformance.com\/products\/sonnax-billet-pinless-accumulator-piston-kit-for-4l60e","provider":"Glenn's Auto Performance","version":"1.0","type":"link"}