The Sure Cure Kit is a comprehensive internal reconditioning package engineered to address the most common wear points and performance complaints in GM 4L60-E, 4L65-E, and 4L70-E automatic transmissions. This kit combines proven internal valve body and pump components used by rebuilders to restore OE shift quality, correct hydraulic wear, and protect against repeat failures. All components are precision-engineered to repair high-wear areas and improve long-term transmission durability during overhaul or rebuild service.

Sonnax SC-4L60E Features:

• Designed to restore OE shift quality and hydraulic control
• Repairs common valve body and pump wear areas
• Helps reduce internal leakage and pressure loss
• Consolidates critical internal repair components into one kit
• Compatible with GM 4L60-E, 4L65-E, and 4L70-E PWM/EC3 transmissions
• Includes step-by-step installation instructions for valve body and pump repair

Sonnax SC-4L60E Includes:

• Pinless accumulator piston kit
• 1-2 accumulator spring
• D-Ring servo seals [5]
• Checkballs [8]
• TCC apply valve kit
• TCC isolator and regulator valve kit
• Oversized pressure regulator valve
• Oversized boost valve and spacer .490 in. factory style
• Actuator feed limit valve kit
• 3-4 relay valve end plug
• Forward and reverse abuse bore plugs [2]
• Pump slide pivot pin
• Bushing
• Check valve kit
• Shims .010 in. and .015 in.
• Retaining clip

Sonnax SC-4L60E Notes:

• Fully compatible with 1995-later GM 4L60-E, 4L65-E, and 4L70-E transmissions with PWM/EC3 control
• PWM/EC3 units are identified by a 13-pin case connector, PWM TCC solenoid, and five-solenoid pump configuration
• Kit components are compatible with 1993-1994 non-PWM units except the TCC apply valve installed in the pump
• Non-PWM units are identified by a 12-pin case connector and four-solenoid valve body configuration
• Recommended installation tools include Sonnax 77754-R2 (sold separately), Sonnax 77754-TL (sold separately), and Sonnax 77917-TL (sold separately)