Ford 6F35 Gen. 1 and Gen. 2 units incorporate a low-pressure compensator feed circuit to assist clutch return springs during release of Overdrive (4,5,6) and Direct (3,5,R) clutches. After clutches disengage, the compensator feed circuit maintains pressure in the clutch release cavity to oppose centrifugal application of the clutches.
Control over this process resides with the control pressure regulator valve. When the bore wears, correct valve operation is hindered, causing clutch apply timing issues such as harsh shifting, flares and bump shifts. In addition, overheated fluid and burnt clutches can result.
Installing Sonnax control pressure regulator valve kit 144740-04K restores normal compensator action, extending the service life of these units beyond that of the OE valve body casting.

Hardcoat anodized aluminum valve combats premature wear
Highly wear-resistant sleeve provides additional valve support
Includes a calibrated spring for restoring OE compensator pressure
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

MANLEY Valve, Severe Duty, Intake, 2.325 in. Head Dia, 0.3415 in. Stem Dia, 6.59 in. Length, BBC, Set of 8

MANLEY Valve, Severe Duty, Intake, 2.325 in. Head Dia, 0.3415 in. Stem Dia, 6.59 in. Length, BBC, Set of 8

$628.35

MANLEY Valve, Street Flo, Exhaust, 1.55 in. Head Dia, 0.3415 in. Stem Dia, 5.08 in. Length, For Ford SB, Set of 8

MANLEY Valve, Street Flo, Exhaust, 1.55 in. Head Dia, 0.3415 in. Stem Dia, 5.08 in. Length, For Ford SB, Set of 8

$280.36

Sonnax Afl/Solenoid Pressure Regulator Valve Kit, Ford, 6F50/55, 6T70/75 Gen I, Each

Sonnax Afl/Solenoid Pressure Regulator Valve Kit, Ford, 6F50/55, 6T70/75 Gen I, Each

$121.22

MANLEY Valve, Severe Duty, Exhaust, 1.9 in. Head Dia, 0.3415 in. Stem Dia, 5.522 in. Length, Set of 8

MANLEY Valve, Severe Duty, Exhaust, 1.9 in. Head Dia, 0.3415 in. Stem Dia, 5.522 in. Length, Set of 8

$607.34

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Each

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Each

$326.62

MANLEY Valve, Race Flo, Intake, 35.5 mm Head Dia, 5.5 mm Stem Dia, 109.22 mm Length, For Honda, Set of 8

MANLEY Valve, Race Flo, Intake, 35.5 mm Head Dia, 5.5 mm Stem Dia, 109.22 mm Length, For Honda, Set of 8

$399.33