Tool Required

Printpartsummary
Symptoms:
  • 1-2 Flare
  • 2-1 Clunk
  • 2-3 Flare
  • Clutch & band failures
  • Code 741, 1741, 1744
  • Delayed engagement
  • Harsh Reverse
  • Neutral after 4th
  • No 4th
  • No Forward
  • Non-adjustable (high) throttle pressure
  • TCC apply & release concerns
  • TCC codes & overheating
  • TCC cycling
  • TCC surge
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

4F50N, AX4N

The Sure Cure® Kit

Part No.

SC-AX4N

The Sure Cure® Kit
  • The Sure Cure® Kit

Small_sc-ax4n

4F50N, AX4N

The Sure Cure® Kit

Part No. SC-AX4N

  • Boost Valve Kit
  • Oversized Bypass Clutch Control Valve Kit requires tool kit 96206-TL
  • Oversized Converter Regulator Valve Kit requires tool kit 96201-TL3 or F-96201-TL23 & VB-FIX
  • Oversized Solenoid Regulator Valve Kit requires tool kit 96201-TL2
  • Forward Control Valve Kit Patent No. 6,736,747, Sonnax recommends bore sizing tool 96206-BST*
  • Pump Slide Pin
  • Relief Valve, Low Radius (2)

Complaint:

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

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 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.

NOTE:

This kit is fully compatible with all AX4N units. For AXODE and AX4S units, use Sure Cure kit SC-AXODE.

*Currently 96206-BST is no longer in production but may be available from distributor inventory.

  • Patent No. 6,736,747

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

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Valve Body Layouts

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

Valve Body Layout Ford AX4N/4F50N
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