Firm up your shifts and improve durability with this 2-pack of high-performance Corvette-style servos! They're designed as an upgrade for GM 700R4, 4L60E, 4L65E, and 4L70E automatic transmissions. These servos apply more clamping force on the bands, which can help prevent slipping, especially under power or when towing. They come with the iconic red anodized cover. Brand is GM, part number cy-0025-2PK, and they have a lifetime manufacturer warranty. They're ready to install, no assembly required. If your transmission feels mushy or you're building a performance vehicle, upgrading the servos is a common and effective mod. This 2-pack gives you what you need for a complete job. A great bang-for-your-buck upgrade for any hot rod, truck, or performance car running these popular GM transmissions.