GM 6L45, 6L50, 6L80 and 6L90 units often suffer from shift abnormalities caused by excess wear in the actuator feed limit (AFL) bore. This wear prevents proper regulation of oil pressure supplied to control solenoids, resulting in harsh or soft shifts, solenoid codes, wrong gear starts and clutch/band failure. Reconditioning the bore and installing Sonnax oversized actuator feed limit valve 104740-12 renews the hydraulic integrity of this circuit, restoring normal shift operation and feel.
Proper AFL action depends on correct line pressure supply to AFL valve. If problems are found with line pressure, Sonnax offers oversized pressure regulator and boost valve kit 104520-07K.

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

More From This Category

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Set of 8

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Set of 8

$2,293.03

COMP Cams Valve, Sportsman, Stainless Steel, Exhaust, For Chevrolet Small Block, 1.600 in. Head, 5.111 in. Length, Each

COMP Cams Valve, Sportsman, Stainless Steel, Exhaust, For Chevrolet Small Block, 1.600 in. Head, 5.111 in. Length, Each

$33.56

MANLEY Valve, Race Master, Exhaust, Bead Loc, 1.575 in. Head Dia, 0.3125 in. Stem Dia, 5.125 in. Length, For Chrysler HEMI, Each

MANLEY Valve, Race Master, Exhaust, Bead Loc, 1.575 in. Head Dia, 0.3125 in. Stem Dia, 5.125 in. Length, For Chrysler HEMI, Each

$50.05

MILODON Valves, Exhaust, Race, Stainless Steel, 1.625 in. Diameter, For Chevrolet, Small Block, 350, 383, 400, Set of 8

MILODON Valves, Exhaust, Race, Stainless Steel, 1.625 in. Diameter, For Chevrolet, Small Block, 350, 383, 400, Set of 8

$414.64

MANLEY Valve, Street Master, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.244 in. Length, BBC, Set of 8

MANLEY Valve, Street Master, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.244 in. Length, BBC, Set of 8

$299.37