Symptoms:

  • Excess TCC slip
  • Low cooler flow
  • Overheating
  • TCC apply & release concerns
  • Low converter & lube flow
  • TCC apply codes
  • TCC lining failure

Cause:

Excess wear in the TCC control valve bore allows critical pressure loss that causes multiple TCC and lube/cooler circuit concerns.

Correction:

Recover hydraulic control and restore proper TCC and lube/cooler operation by reconditioning the bore and installing Sonnax oversized TCC control valve kit.

6F50, 6F55, 6T70 (Gen. 1), 6T70 (Gen. 2), 6T75 (Gen. 1), 6T75 (Gen. 2), 6T80 (Gen. 2)

Oversized TCC Control Valve Kit
Part No. 124740-14K


You need this if... View Instructions Find a Distributor

Common problems associated with listed Ford transmissions are high TCC slip, TCC lining degradation, TCC slip codes and converter apply or release concerns. In addition, converter/lube and cooler flow can be inhibited, resulting in an overheat situation. These issues are often caused by excess wear at the TCC control valve bore. Reconditioning the bore and installing Sonnax oversized TCC control valve kit 124740-14K restores hydraulic integrity for proper TCC, lubrication and cooler operation. Hardcoat anodized aluminum valve combats premature wear.

  • Valve
  • Spring

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.

GM Gen. 1 6T70, 6T75 Valve Body Layout

GM Gen. 1 6T70, 6T75 Valve Body Layout

GM Gen. 2 6T70, 6T75, 6T80 Valve Body Layout

GM Gen. 2 6T70, 6T75, 6T80 Valve Body Layout

Ford 6F50, 6F55 Valve Body Layout

Ford 6F50, 6F55 Valve Body Layout
  • 6F50, 6F55, 6T70 (Gen. 1), 6T70 (Gen. 2), 6T75 (Gen. 1), 6T75 (Gen. 2), 6T80 (Gen. 2) Oversized TCC Control Valve Kit 124740-14K
  • 6F50, 6F55, 6T70 (Gen. 1), 6T70 (Gen. 2), 6T75 (Gen. 1), 6T75 (Gen. 2), 6T80 (Gen. 2) Oversized TCC Control Valve Kit 124740-14K

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

6F50, 6F55, 6T70 (Gen. 1), 6T70 (Gen. 2), 6T75 (Gen. 1), 6T75 (Gen. 2), 6T80 (Gen. 2) Oversized TCC Control Valve Kit Vacuum Test Locations