{"product_id":"super-hold-servo-kit","title":"Super Hold Servo Kit","description":"\n\u003cdiv class=\"spaced-vertical\"\u003e\n\u003cp\u003eSonnax super hold servo kit 28821-09K is an all-in-one upgrade ideal for a competitive edge in GM Powerglide applications where racers are looking to reduce line pressure to free up horsepower. The kit's dual piston design features 30% more apply area to increase band apply force at your current line pressure or allow you to reduce line pressure by 20% to 30% while maintaining the same apply force.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eDual piston design for 30% more apply area\u003c\/li\u003e\n\u003cli\u003eSpring counteracts \u003ca href=\"http:\/\/www.sonnax.com\/tech_resources\/83-understanding-overcoming-the-powerglide-servo-pin-bias-effect-part-1\"\u003epin bias effect\u003c\/a\u003e up to 275 psi\u003c\/li\u003e\n\u003cli\u003eImproved sealing throughout\u003c\/li\u003e\n\u003cli\u003eLow-profile design ensure adequate clearance\u003c\/li\u003e\n\u003cli\u003e6061 Anodized billet aluminum cover\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=\"notes-panel\"\u003eNote:\u003c\/label\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eA common question is, \"I have an extreme application, how do I choose between the Sonnax Smart-Tech\u003csup\u003e®\u003c\/sup\u003e servo and the super hold servo?\"\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003eBoth are track-proven in today’s high-power vehicles. With its ratio-style release and supported pin design, the Smart-Tech \u003ca href=\"..\/i-30503438-smart-tech-ratio-style-servo-kit.html\"\u003e28821-10K\u003c\/a\u003e is the best all-around upgrade that eliminates EVERY problem associated with the OE servo. Racers looking to reduce line pressure for greater efficiency will most benefit from the super hold servo’s 30% more apply area.\u003c\/p\u003e\n\n\u003c\/div\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\u003eServo Assembly\u003c\/li\u003e\n\u003cli\u003eCover Gasket\u003c\/li\u003e\n\u003cli\u003eCase-to-Cover O-Ring\u003c\/li\u003e\n\u003cli\u003eReturn Spring\u003c\/li\u003e\n\u003cli\u003eServo Pin Seals (2) \u003cem\u003ePTFE, 1 Extra\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrimary Piston Seals (2) \u003cem\u003ePTFE\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\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\/184483.pdf?v=1793635459\" 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":49129580003547,"sku":"28821-09K","price":776.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/F198657031.jpg?v=1786547508","url":"https:\/\/suncoastperformance.com\/products\/super-hold-servo-kit","provider":"SunCoast Diesel","version":"1.0","type":"link"}