When rebuilding high performance or heavy-duty Ford C6 transmissions, it is common to find a worn boost sleeve in the clicker-style valve body. This wear causes poor line rise, which results in erratic shift timing, Reverse shudder or direct clutch failure. This can be caused by the reciprocating boost valve wearing the inside diameter of the boost sleeve. When this occurs, oil that enters the modulated line pressure orifice leaks past the boost valve and exhausts through the Reverse orifice, resulting in poor or no line rise. The outside diameter of the boost sleeve may allow some leakage through the valve body, which can result in insufficient line rise.
Sonnax boost valve kit 36941-01K eliminates the above problems. Replace the boost valve and sleeve to restore performance and to reduce the chance of premature failure.

Sleeve is manufactured from highly wear-resistant aluminum alloy
Hardcoat anodized valve combats premature wear
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

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, Intake, 2.02 in. Head Dia, 0.3133 in. Stem Dia, 5.035 in. Length, For Chevrolet SB, Each

MANLEY Valve, Race Flo, Intake, 2.02 in. Head Dia, 0.3133 in. Stem Dia, 5.035 in. Length, For Chevrolet SB, Each

$51.07

Sonnax Oversized Tcc Control Valve Kit, Ford 5R55N/S/W, Each

Sonnax Oversized Tcc Control Valve Kit, Ford 5R55N/S/W, Each

$64.46

MANLEY Valve, Titanium, Intake, Bead Loc, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.54 in. Length, Each

MANLEY Valve, Titanium, Intake, Bead Loc, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.54 in. Length, Each

$325.41

MANLEY Valve, Titanium, Exhaust, Bead Loc, 1.9 in. Head Dia, 0.3415 in. Stem Dia, 5.44 in. Length, Set of 8

MANLEY Valve, Titanium, Exhaust, Bead Loc, 1.9 in. Head Dia, 0.3415 in. Stem Dia, 5.44 in. Length, Set of 8

$2,550.76

MANLEY Valve, Race Flo, Intake, Bead Loc, 2.14 in. Head Dia, 0.3125 in. Stem Dia, 5.135 in. Length, For Chrysler HEMI, Set of 8

MANLEY Valve, Race Flo, Intake, Bead Loc, 2.14 in. Head Dia, 0.3125 in. Stem Dia, 5.135 in. Length, For Chrysler HEMI, Set of 8

$408.60