Symptoms:

  • Overheated transmission & converter
  • Cooler restriction caused by lining material
  • High CVIs
  • Low/Reverse switch code
  • Poor lube oil control
  • High line pressure
  • 1-2 Shudder
  • 2nd Gear starts
  • Coastdown clunk
  • Harsh shifts
  • Slide shifts
  • Erratic TCC apply
  • Converter shudder & failure
  • TCC deflection & lining failure

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
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  • 40TE, 40TES, 41AE, 41TE, 41TES, 42LE The Sure Cure® Kit SC-41TE
Sonnax Sure Cure Kit

The Sure Cure®

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.

Learn More about Sonnax Sure Cure Kits