Aisin Seiki AS68RC units often develop 2-3 flaired shifts, gear ratio errors and solenoid performance codes related to pressure switch 1 and 2 due to excess wear in the linear solenoid output dampeners located in the lower valve body casting.
Reconditioning the bores and installing Sonnax oversized linear solenoid output dampener valve kit 99740-04K re-establishes correct clearances for proper hydraulic functions and shift control, salvaging these very expensive and hard-to-find valve bodies.

Hardened steel valves combat premature wear
Oversized valves recalibrated to meet original OE pressures using the OE dampener springs

More From This Category

Sonnax Rear Sun Gear Thrust Washer, Powerglide, Each

Sonnax Rear Sun Gear Thrust Washer, Powerglide, Each

$9.38

Sonnax Boost Valve Kit, Ford, Fd C6, Diesel Ratio, Each

Sonnax Boost Valve Kit, Ford, Fd C6, Diesel Ratio, Each

$85.70

Sonnax Line Pressure Booster Kit, Ford, 4R100, E4Od, Each

Sonnax Line Pressure Booster Kit, Ford, 4R100, E4Od, Each

$54.43

Sonnax Friction Ring, Jatco, 10.750in. X 9.500in. X .045", Each

Sonnax Friction Ring, Jatco, 10.750in. X 9.500in. X .045", Each

$14.37

Sonnax Thrust Bearing, GM 4L80E, Each

Sonnax Thrust Bearing, GM 4L80E, Each

$23.04

Sonnax Friction Ring, Chrysler, 10.250in. X 8.625in. X .066", Hts Material, Each

Sonnax Friction Ring, Chrysler, 10.250in. X 8.625in. X .066", Hts Material, Each

$28.00