{"product_id":"suncoast-28821-20k-supported-servo-master-kit","title":"Suncoast Supported Servo Master Kit","description":"\u003cp\u003e \u003c\/p\u003e\n\n\u003cdiv class=\"spaced-vertical\"\u003e\n\n\u003cp\u003eConventional GM Powerglide servos are not well-supported and the return springs do not function properly, both leading causes of band failure. Sonnax supported servo master kit 28821-20K is an all-in-one kit that eliminates piston binding and includes a race-calibrated spring to counteract the \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.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003eAt high apply pressures or with a worn servo pin bore, the servo piston is side-loaded in the case, causing friction and binding of the piston. The supported pin design of this Sonnax kit eliminates friction caused by side-loading and ensures the servo piston will apply and release without binding.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\"Mystery\" band failures are a common result of aftermarket servo return springs and weak OE springs prone to collapse that do not reliably release the servo. The Sonnax spring in this kit is race-calibrated to ensure consistent servo function for longer band life and a cooler transmission. The spring's higher seat pressure helps ensure full servo release, but also features a lower spring rate to prevent excessive release force in the apply position.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eUnique cover and pin combination eliminates piston binding that causes unexplained band failure\u003c\/li\u003e\n\n\u003cli\u003eRace-calibrated spring counteracts pin bias effect up to 275 psi\u003c\/li\u003e\n\n\u003cli\u003eDual PTFE seal rings for better seal and low friction\u003c\/li\u003e\n\n\u003cli\u003eOE apply area\u003c\/li\u003e\n\n\u003cli\u003eLow-profile design ensures adequate clearance\u003c\/li\u003e\n\n\u003cli\u003e6061 Anodized billet aluminum cover\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Suncoast Performance","offers":[{"title":"Default Title","offer_id":48219395162353,"sku":"28821-20K","price":242.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/1344\/3057\/files\/Supported-Servo-Master-Kit-Suncoast-Performance-151097471.jpg?v=1779829313","url":"https:\/\/tamelessperformance.com\/products\/suncoast-28821-20k-supported-servo-master-kit","provider":"TAMELESS PERFORMANCE","version":"1.0","type":"link"}