In Ford CD4E and Mazda LA4A-EL units, low pressure, servo leakage and/or pin bore wear can all cause a degradation of the servo timing and apply rate of the direct clutch in CD4E transmissions. Sonnax reduced force servo return spring 73708 to addresses these problems.

Replacement spring provides enough force to firmly apply the 2-4 band, yet is not overly stiff so that a controlled release is allowed
Spring will work with both the one-piece or two-piece servo piston and rod assembly

More From This Category

COMP Cams Valve Lock, Stamped, Hardened Steel, 7 Degree, 11/32 in. Valve Stem, Single Groove, Set of 8

COMP Cams Valve Lock, Stamped, Hardened Steel, 7 Degree, 11/32 in. Valve Stem, Single Groove, Set of 8

$15.63

MANLEY Valve Spring Retainer, Titanium, 7 Degree, +.600 in. Height, 1.020/1.030 in. OD, Set of 32

MANLEY Valve Spring Retainer, Titanium, 7 Degree, +.600 in. Height, 1.020/1.030 in. OD, Set of 32

$1,068.02

AFR Retainer, BBC Steel 10 degree 1.500 OD x 1.168 ID x .844 ID, Set of 16

AFR Retainer, BBC Steel 10 degree 1.500 OD x 1.168 ID x .844 ID, Set of 16

$155.82

MANLEY Valve Spring, NexTek, Drag Race, 1.311 in. OD, 353 lbs./in. Rate, 1.100 in. Coil Bind Height, Single, Set of 16

MANLEY Valve Spring, NexTek, Drag Race, 1.311 in. OD, 353 lbs./in. Rate, 1.100 in. Coil Bind Height, Single, Set of 16

$720.97

COMP Cams Valve Spring, Race Street, 1.101 in. OD, Beehive, 1.640 in. Installed Height, Each

COMP Cams Valve Spring, Race Street, 1.101 in. OD, Beehive, 1.640 in. Installed Height, Each

$46.90

MANLEY Valve Lock, Super 7 Degree Captiv Loc, Bead Loc, PVC Titanium, -.050 .3110 in. Stem, Set of 8

MANLEY Valve Lock, Super 7 Degree Captiv Loc, Bead Loc, PVC Titanium, -.050 .3110 in. Stem, Set of 8

$317.27