{"product_id":"oversized-4-3-sequence-valve-kit","title":"Oversized 4-3 Sequence Valve Kit","description":"\n\u003cdiv class=\"spaced-vertical\"\u003e\n\u003cp\u003eGM 4L60-E, 4L65-E and 4L70-E transmissions often have trouble shifting into or holding 4th Gear due to excess wear in the sequence valve bore. This wear allows vital 4th Gear accumulator oil to exhaust, resulting in deficient servo apply pressure. Consequences are slipping or no 4th Gear operation followed closely by a burnt band. Leaking at the OE end plug also allows oil loss that can leave 4th Gear inoperable. Re-establish hydraulic control and restore normal operation by reconditioning the bore and installing Sonnax oversized 4-3 sequence valve kit 77964-04K.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eO-Ringed end plug helps prevent 4th Gear oil loss\u003c\/li\u003e\n\u003cli\u003eHardcoat anodized aluminum valves combat premature wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"part-accordion cb spaced-vertical\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003clabel for=\"components-panel\"\u003eContents:\u003c\/label\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cul\u003e\n\u003cli\u003e3-4 Relay Valve\u003c\/li\u003e\n\u003cli\u003e4-3 Sequence Valve\u003c\/li\u003e\n\u003cli\u003eEnd Plug\u003c\/li\u003e\n\u003cli\u003eO-Ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eRequired Parts:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eReamer - Part No. \u003ca href=\"..\/i-30503140-reamer-for-77964-04k.html\"\u003e77964-RM2\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"break-out-grey\"\u003e\n\u003cdiv class=\"wrap scc\"\u003e\n\u003cdiv class=\"col-4\"\u003e\n\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo 4th\u003c\/li\u003e\n\u003cli\u003e2-4 Band burned\u003c\/li\u003e\n\u003cli\u003eLow 4th Gear pressure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"col-4\"\u003e\n\u003cp\u003e\u003cstrong\u003eCause:\u003c\/strong\u003e\u003c\/p\u003e\nContinuous oscillation in sequence valve bore causes wear that prevents proper hydraulic control.\u003c\/div\u003e\n\u003cdiv class=\"col-4\"\u003e \u003c\/div\u003e\n\u003cdiv class=\"col-4 last\"\u003e\n\u003cp\u003e\u003cstrong\u003eCorrection:\u003c\/strong\u003e\u003c\/p\u003e\nRecover hydraulic control and renew 4th gear operation by reconditioning the bore and installing Sonnax oversized 4-3 sequence valve kit.\u003c\/div\u003e\n\u003cdiv class=\"col-4 last\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"break-out-accent break-out-accent-link\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis kit does not address wear on the inboard two spools. To address wear in that location, use Sonnax oversized 4-3 sequence valve kit \u003ca href=\"..\/i-30503116-oversized-4-3-sequence-valve-kit-oe-valve-bore-only.html\"\u003e77964-14K\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e \u003c!-- suncoast-documents:start --\u003e\u003cdiv class=\"suncoast-product-documents\"\u003e\n\u003ch3 class=\"h6\"\u003eDocuments\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/184216.pdf?v=1793635250\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\u003c!-- suncoast-documents:end --\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":49129567027419,"sku":"77964-04K","price":147.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/F198655918.jpg?v=1786547069","url":"https:\/\/suncoastperformance.com\/products\/oversized-4-3-sequence-valve-kit","provider":"SunCoast Diesel","version":"1.0","type":"link"}