Tool Required

Printpartsummary
Symptoms:
  • 1-2 Harsh
  • 2-3 Shift feel poor
  • 3-4 Clutch failure
  • Burnt clutches & bands
  • Code 1870
  • Erratic line pressure
  • Falls out of lockup when hot
  • Low line rise
  • No lockup
  • Poor shift quality
  • Pump noise
  • Reduced 3-4 clutch life
  • Rotor fracture
  • TCC slip
Correction:

The parts in this Sure Cure kit repair and restore key areas most prone to TCC-related transmission problems and other issues affecting shift quality.

Tool Required

4L60-E, 4L65-E, 4L70-E

The Sure Cure® Kit

Part No.

SC-4L60E

The Sure Cure® Kit
  • The Sure Cure® Kit

Small_sc-4l60e

4L60-E, 4L65-E, 4L70-E

The Sure Cure® Kit

Part No. SC-4L60E

  • Actuator Feed Limit Valve Kit
  • Pinless 1-2 or 3-4 Accumulator Piston Kit
  • Check Valve Kit
  • 1-2 Accumulator Spring
  • Checkball (8)
  • Clip
  • Forward & Reverse Abuse Bore Plug (2)
  • 3-4 Relay Valve End Plug
  • Oversized Boost Valve & Spacer .490"
  • TCC Apply Valve Kit
  • Oversized Pressure Regulator Valve
  • Pump Slide Pivot Pin
  • Bushing
  • D-Ring Servo Seals (5)
  • Shim .010"
  • Shim .015"
  • TCC Isolator & Regulator Valve Kit

Complaint:

  • 1-2 Harsh
  • 2-3 Shift feel poor
  • 3-4 Clutch failure
  • Burnt clutches & bands
  • Code 1870
  • Erratic line pressure
  • Falls out of lockup when hot
  • Low line rise
  • No lockup
  • Poor shift quality
  • Pump noise
  • Reduced 3-4 clutch life
  • Rotor fracture
  • TCC slip

Cause:


Correction:

The parts in this Sure Cure kit repair and restore key areas most prone to TCC-related transmission problems and other issues affecting shift quality.

Sonnax Sure Cure kit SC-4L60E is a comprehensive reconditioning package for GM 4L60-E PWM units featuring the best Sonnax products developed to help rebuilders restore and enhance transmission performance. Sure Cure components are the same Sonnax parts sold individually to resolve common valve body complaints as well as other transmission problems. The high-quality Sonnax parts in each Sure Cure kit repair worn areas and protect the transmission against future damage. Plus, each kit comes with easy-to-read, step-by-step installation guide that covers the inspection and repair of the most critical areas of the valve body.

  • Restore shift quality and reduce comebacks
  • Repairs biggest trouble areas to reduce comebacks
  • Includes step-by-step instructions for comprehensive valve/pump body restoration
  • Get everything you need for restoring troublesome units in one place, at one cost
NOTE:

This kit is fully compatible with 95-later 4L60-E units with PWM/EC3 (electronically controlled capacity clutch) control. These can be identified by the 13-pin case connector, PWM/TCC solenoid and PWM pump (five solenoids). All components in this kit are compatible 9394 non-PWM units EXCEPT the TCC apply valve 77805E-K installed in the pump. These units can be identified by the 12-pin case connector, only having a 3-2 solenoid in valve body (four solenoids).

  • Patent No. 6,619,323
  • Patent No. 6,634,377
  • Patent No. 6,899,211
  • Patent No. 6,990,966
  • Patent No. 7,104,273

Sonnax Sure Cure® Kits

Comprehensive Kit for Big Problems You Don't Want Back

Knowing exactly what parts to replace in troublesome transmissions is an ever-increasing challenge, but Sonnax Sure Cure kits solve this problem for you. Each kit is a comprehensive reconditioning package featuring the best Sonnax products developed to help rebuilders restore and enhance transmission performance.

Related Parts

Click here to view PDF if instructions do not appear below.

It appears you don't have a PDF plugin for this browser. Click here to view the PDF file.

Contact a Sonnax Distributor to purchase this part.