The Toyota/Lexus U660E/F, U760E/F transmissions may exhibit harsh 4-5 upshifts/downshifts, delayed Reverse or Neutral to Drive engagement due to wear in the clutch control valve bore. A common wear location in the bore is at the outboard spring pocket, where SL1 pressure works with the spring to keep the valve bottomed in the bore. The resulting SL1 leakage diminishes fluid pressure to the sequence valve and C1 clutch, creating delayed engagement.
Wear at the inboard bore area can allow SL2 pressure loss, resulting in diminished fluid pressure to the C2 clutch and 4-5 or 5-4 shift flares or harshness.
Reconditioning the bore and installing Sonnax oversized clutch control valve kit 47740-22K restores hydraulic integrity in the circuit.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves on the valve help center it in the bore to reduce future side-load wear

More From This Category

MANLEY Valve, Titanium, Intake, 2.08 in. Head Dia, 0.3415 in. Stem Dia, 5.04 in. Height, Each

MANLEY Valve, Titanium, Intake, 2.08 in. Head Dia, 0.3415 in. Stem Dia, 5.04 in. Height, Each

$302.72

COMP Cams Valve, Sportsman, Stainless Steel, Intake, For Chevrolet Small Block, 2.020 in. Head, 5.011 in. Length, Set of 8

COMP Cams Valve, Sportsman, Stainless Steel, Intake, For Chevrolet Small Block, 2.020 in. Head, 5.011 in. Length, Set of 8

$246.30

MANLEY Valve, Extreme Duty, Exhaust, 2.06 in. Head Dia, 0.3415 in. Stem Dia, 6.7 in. Length, Gen II, Each

MANLEY Valve, Extreme Duty, Exhaust, 2.06 in. Head Dia, 0.3415 in. Stem Dia, 6.7 in. Length, Gen II, Each

$139.15

MANLEY Valve, Titanium, Intake, 2.15 in. Head Dia, 0.3415 in. Stem Dia, 5.64 in. Height, Set of 8

MANLEY Valve, Titanium, Intake, 2.15 in. Head Dia, 0.3415 in. Stem Dia, 5.64 in. Height, Set of 8

$2,564.57

MANLEY Valve, Race Flo, Exhaust, 28.5 mm Head Dia, 5.5 mm Stem Dia, 102.70 mm Length, For Honda, Each

MANLEY Valve, Race Flo, Exhaust, 28.5 mm Head Dia, 5.5 mm Stem Dia, 102.70 mm Length, For Honda, Each

$50.05

MANLEY Valve, Severe Duty, Exhaust, 1.88 in. Head Dia, 0.3715 in. Stem Dia, 5.354 in. Length, BBC, Set of 8

MANLEY Valve, Severe Duty, Exhaust, 1.88 in. Head Dia, 0.3715 in. Stem Dia, 5.354 in. Length, BBC, Set of 8

$607.34