{"product_id":"powerglide-servo-piston-kit","title":"Powerglide Servo Piston Kit","description":"The Sonnax 28821-01K Servo Piston Kit is engineered to enhance the performance and durability of GM Powerglide transmissions, particularly those used in demanding applications like drag racing. Standard OE servo pistons can crack under the higher line pressures (over 200 psi) generated in these scenarios, leading to transmission failure. This Sonnax kit directly addresses this vulnerability.\n\nThis robust construction ensures it can withstand higher pressures without cracking. Additionally, the dual O-ring style piston offers improved sealing capabilities, which is especially beneficial in transmissions with worn or scuffed cases.\n\nThe kit includes the billet aluminum piston, two O-rings, and a cover gasket, providing a complete solution for upgrading the servo piston.","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":52866326823224,"sku":"28821-01K","price":77.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687676132.webp?v=1787906760","url":"https:\/\/store.motormia.co\/products\/powerglide-servo-piston-kit","provider":"MOTORMIA","version":"1.0","type":"link"}