Camoo High-Performance Corvette Servo Piston Kit A74905BK for TH700R4 / 4L60 / 4L65E

Camoo Corvette Servo Piston Kit Upgrade for Smooth, Strong Shifts

Designed for 1982-on Corvette-style TH700-R4 transmissions and the 4L60, 4L60E, and 4L65E families, this kit targets the 2nd gear band to maximize engagement where it matters most. The upgrade is presented as a performance option rather than a guaranteed fix, offering the potential for a noticeably firmer 2nd and 3rd shift under demanding driving conditions. It is intended to complement, not replace, existing valve body configurations and can be used alongside compatible performance parts.

Crafted with high-quality materials and precision machining, the kit emphasizes durability and reliability. The aluminum alloy housing provides a rigid structure that helps resist flex during high-pressure operation, while Teflon seals improve sealing during both apply and release cycles. The result is a robust upgrade designed for high-performance applications that can work with compatible valve body kits to support broader transmission performance goals.

Key benefits you may notice

• Increased apply area can contribute to enhanced torque capacity in second gear
• Potentially firmer 2nd and 3rd shifts for a more controlled driving experience
• Rigid aluminum alloy construction for long-term durability
• Teflon seals aimed at improved sealing during both engagement and release
• Engineered for high-performance use and designed to be compatible with valve body kits

What you get

• Inner housing servo (donut) piston
• 2nd apply piston (inner) 1.642" servo
• Inner Teflon scarf-cut seal ring
• Outer Teflon scarf-cut seal ring
• O-Ring
• Servo cover (inner red)
• O-Ring
• Servo cover (outer blue)

Compatibility and installation notes

This kit is tailored for Corvette-style transmissions from 1982 onward, including TH700-R4, 4L60, 4L60E, and 4L65E variants, with extensions to 4L70/4L75-era models through 2007. It’s intended to be used as part of a broader performance upgrade and works best when paired with compatible valve body components.

Quality guarantees

Camoo backs this product with a 30-day full-refund policy and a 12-month warranty, providing reassurance for performance-minded buyers exploring upgrade options without overpromising outcomes.

Who should consider this upgrade

Enthusiasts who push a Corvette-style automatic transmission in street, track, or spirited weekend scenarios may find the enhanced shift feel appealing. Consider this kit as a possible element of a broader build, with results that can vary by vehicle, condition, and other upgrades.