Common problems associated with Toyota/Lexus U660E, U660F, U760E and U760F transmissions are overheating, TCC slip, TCC codes and converter failure. These issues can be caused by excess wear at the converter and lube relief check valves. This can cause the valve to leak fluid and significant wear can cause the valve to become stuck in the bore.
Reconditioning the bore and installing Sonnax oversized converter and lube relief check valve kit 47740-60K re-establishes correct clearance for proper converter and lube functions.

More From This Category

Sonnax Oversized Two-Spool Relay/Signal Valve Kit, Aisin Aw, 09G/K/M, Tf-80/81Sc, Tf-60Sn, Each

Sonnax Oversized Two-Spool Relay/Signal Valve Kit, Aisin Aw, 09G/K/M, Tf-80/81Sc, Tf-60Sn, Each

$67.02

Sonnax Vacuum Test Plate Kit, Allison, Allison 1000/2000/2400 '00-'15, Each

Sonnax Vacuum Test Plate Kit, Allison, Allison 1000/2000/2400 '00-'15, Each

$845.00

Sonnax Heavy Duty Output Shaft, 4L60-E, 4L65-E, 4L70-E, Each

Sonnax Heavy Duty Output Shaft, 4L60-E, 4L65-E, 4L70-E, Each

$1,125.69

TCI 4L60E .490 Boost Valve w/ O-Ring.

TCI 4L60E .490 Boost Valve w/ O-Ring.

$121.27

Sonnax Reverse Servo Spacer Kit, GM 4L80-E, 4L85-E, Each

Sonnax Reverse Servo Spacer Kit, GM 4L80-E, 4L85-E, Each

$27.08