Sonnax super hold servo kit K65703 for GM 200, 200-4R, 200C units features a 17% greater apply area than the Grand National servo. Its pin is longer than the longest OE pin, allowing for a full range of adjustment. The optional parts include a shim, spring and spacer which, when combined with OE springs, result in a variety of shift tuning capabilities. Altogether, the level of customization in this kit makes it ideal for high-performance street applications as well as all-out racing.Overall sealing characteristics have been improved throughout the servo, which features an O-ring to seal the piston to pin. This O-ring prevents cross leakage between the apply and release side of the piston, ensuring all apply pressure gets to the piston for solid shifts. 17% Greater apply area than Grand National servo Extra-long servo pin and optional parts for highly tunable shift feel Outstanding sealing characteristics Made from 6061 billet aluminum for improved strength Replacement seal kit and servo pin kit available
Servo Kit; Super Hold, 17% Greater apply area than Grand National servo, Extra-long servo pin and optional parts for highly tunable shift feel. Made from 6061 billet aluminum for improved strength, Includes Piston, Pin, Shim, Spring, E-clip, Spacer, Red Anodized Cover, Small & Large O-Ring Seals, Lip Seals (2) Seal Rings (2)