• Pump noise
  • Pump rotor damage
  • Clutch & band failures
  • Erratic line pressure
  • Non-adjustable (high) throttle pressure
  • 1-2 Flare
  • 2-3 Flare
  • 2-1 Clunk
  • No 4th
  • No Forward
  • Forward slip
  • Reverse slip
  • Harsh Reverse
  • Delayed engagement
  • TCC cycling
  • TCC surge
  • Code 741, 1741, 1744
  • TCC apply & release concerns
  • TCC codes & overheating


The Sure Cure® Kit

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Sonnax Sure Cure Kits combine the best Sonnax products into one box, offering rebuilders a convenient and cost-effective way to address common transmission problems. These kits simplify ordering, stocking and estimating job costs, and include easy-to-read, step-by-step instructions that cover the inspection and repair of the most critical areas of the unit, and even a reference list of rebuilding specifications.

  • Forward Control Valve Kit
  • Relief Valves (2)
  • Low/Intermediate Servo Spring Retainer Clip
  • Backout Valve Clip
  • 1-2 Capacity Modulator Valve Retainer
  • 3-2 Timing Valve Saver Cap Kit
  • Bypass TCC Control Plunger Valve Kit
  • Retaining Ring Rear Ring Gear
  • 3-2 Timing Valve Retainer
  • Oil Pump Shaft Plug
  • Boost Valve Kit
  • AX4S, AXODE The Sure Cure® Kit SC-AXODE

You guys are the best in the business. I was especially happy with the Sure Cure kit SC-AXODE that I used on my personal daily driver 2003 Mercury Sable. Thanks Sonnax for all you do!

R. Robertson
Salton Sea Beach, CA

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.

Learn More about Sonnax Sure Cure Kits