In GM 4L60-E, 4L65-E and 4L70-E units, the hammering effect of the 3-4 relay and/or 3-4 shift valves can cause the end plugs to wear, resulting in loss of 4th signal and/or D3 oil. Replace the worn OE end plugs with Sonnax 3-4 relay O-ringed end plug kit 77964-08K to restore hydraulic integrity and prevent loss of critical 4th signal and/or D3 oil.

O-Rings on the end plugs provide a positive seal
Restores hydraulic integrity at the end plug

More From This Category

ARP Cylinder Head Stud, Pro-Series, Hex Head, For Pontiac, Ram Air 5, Kit

ARP Cylinder Head Stud, Pro-Series, Hex Head, For Pontiac, Ram Air 5, Kit

$352.24

DBA Rear Street Series Brake Caliper, For Subary Impreza GD 2.0L P Turbo AWD LH 12/02 - 9/05, Kit

DBA Rear Street Series Brake Caliper, For Subary Impreza GD 2.0L P Turbo AWD LH 12/02 - 9/05, Kit

$213.80

MILODON Oil Pan, Steel, Gold Iridite, 7 qt, Mopar, Big Block, B/RB/Hemi, Fits Chassis with Magnum Crossmember, Each

MILODON Oil Pan, Steel, Gold Iridite, 7 qt, Mopar, Big Block, B/RB/Hemi, Fits Chassis with Magnum Crossmember, Each

$1,115.17

ARP Pulley Bolt Kit, Ford Hex Stainless Steel Lower

ARP Pulley Bolt Kit, Ford Hex Stainless Steel Lower

$28.86 $31.92

10% OFF
DBA Rear Street Series Brake Rotor, 345mm, For Chev Tahoe 08, Kit

DBA Rear Street Series Brake Rotor, 345mm, For Chev Tahoe 08, Kit

$174.50