{"product_id":"sonnax-4th-gear-super-hold-dual-servo-kit","title":"Sonnax 4th Gear Super Hold Dual Servo Kit","description":"The Sonnax 77767K 4th Gear Super Hold Dual Servo Kit is engineered to provide enhanced holding power and improved shift performance for automatic transmissions. This kit utilizes a patented dual-piston design that offers a significant 40% increase in apply surface area compared to stock servos, resulting in greater holding capacity.\n\nConstructed with durability in mind, the 77767K kit features upgraded Viton D-ring seals, known for their resistance to heat and harsh transmission fluids. This ensures longevity and reliable operation under demanding conditions.\n\nThe servo kit is designed for specific GM transmission models, including the 4L60 (700-R4), 4L60E, 4L65E, and 4L70E. Installation typically involves internal transmission work, and while specific tools are not mentioned as required, it's generally recommended for experienced technicians to ensure proper fitment and function. The kit's design slightly reduces pin travel, necessitating compensation when using GM tool #J-33037.","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":52687449489720,"sku":"77767K","price":89.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660193811.png?v=1784884207","url":"https:\/\/store.motormia.co\/products\/sonnax-4th-gear-super-hold-dual-servo-kit","provider":"MOTORMIA","version":"1.0","type":"link"}