{"product_id":"sonnax-high-rpm-checkball-capsule-suit-gm-powergilde-th400-5-pack","title":"Sonnax High RPM Checkball Capsule - SX57510-01","description":"\u003cp\u003eHI-RPM CHECKBALL CAPSULE 5-PK\u003c\/p\u003e\u003cp\u003eSuit GM Powergilde \u0026amp; TH400 (5-Pack)\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePart Number\u003c\/b\u003e: SX57510-01\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cdiv class=\"value description\" itemprop=\"description\"\u003e \u003cp\u003eSonnax high RPM checkball capsule 57510-01 is specially calibrated to prevent pressure drops in high RPM GM TH400 and Powerglide racing applications.\u003c\/p\u003e\n\u003cp\u003eTesting has shown that OE checkballs are unreliable above 5500 RPM. At higher speeds the checkballs can unseat, resulting in drop of line pressure or converter pressure. Variables that effect checkball performance include: diameter of ball, mass of ball, distance from centerline, seat angle, oil pressure and RPM.\u003c\/p\u003e\n\u003cp\u003eFor racing applications that see RPM above 5500, the checkball in piston or drum should be replaced with Sonnax high RPM checkball capsule 57510-01. This universal part can be installed in TH400 pistons or drums and Powerglide drums with four bleed holes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents pressure drop above 5500 RPM\u003c\/li\u003e\n\u003cli\u003eUpgrades all OE and aftermarket TH400 drums and pistons\u003c\/li\u003e\n\u003cli\u003eUpgrades OE and aftermarket Powerglide drums with four bleed holes\u003c\/li\u003e\n\u003c\/ul\u003e \u003c\/div\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":49003818909923,"sku":"SX57510-01","price":59.4,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/0821\/9875\/files\/rztkxbx1hnhjvynt6qwv.jpg?v=1779542241","url":"https:\/\/fastlanespares.co.nz\/products\/sonnax-high-rpm-checkball-capsule-suit-gm-powergilde-th400-5-pack","provider":"Fast Lane Spares","version":"1.0","type":"link"}