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

RaceTec Pistons, AutoTec, SBC Nostalgia 283/302/327, Dome, 0.03 Oversize, 4.030 Bore, 3.250 Stroke,

RaceTec Pistons, AutoTec, SBC Nostalgia 283/302/327, Dome, 0.03 Oversize, 4.030 Bore, 3.250 Stroke,

$1,313.54

Cartech Books, How To Buy And Sell Collector Cars

Cartech Books, How To Buy And Sell Collector Cars

$66.41

DBA Front Street Series Brake Caliper, For Toyota Corolla ZZE122 1.8L P FWD LH 4/04 - 8/06, Kit

DBA Front Street Series Brake Caliper, For Toyota Corolla ZZE122 1.8L P FWD LH 4/04 - 8/06, Kit

$343.00

DBA Rear Street Series Brake Caliper, For Skoda Octavia 1.4L (CAXA Engine) P Turbo FWD RH 9/10 - 11/13, Kit

DBA Rear Street Series Brake Caliper, For Skoda Octavia 1.4L (CAXA Engine) P Turbo FWD RH 9/10 - 11/13, Kit

$238.20

Cast Piston

Cast Piston

$102.57