AOD Transmission Overdrive Band Servo

Super Hold Servo Kit

Part No. 76890-17KP

For high-performance applications where a larger servo is needed, the Sonnax Super Hold Servo Kit 76890-17KP delivers the largest apply area available for Ford AOD transmissions.

This servo is engineered to progressively increase band apply force as line pressure rises. At low pressure, it performs similarly to the Ford A servo. At mid-to-high pressure, it delivers significantly greater apply force than any other AOD servo.

Key Benefits

• Largest apply area of any AOD servo
• Optional cushion springs provide maximum holding power while reducing harshness
• Springs help minimize 3–4 shift timing issues common with larger overdrive servos
• Special servo pin with O-ring seals prevents oil leaks at the case pin bore

Kit Contents

• Conical Washers (4)
• D-Ring Piston Seal
• Spacer
• Return Spring
• Servo Pin
• E-Clip
• Servo Piston
• Servo Cover
• O-Rings (4)
• Washers (2)
• Gauge Tool