3-4 Relay O-Ringed End Plug Kit

3-4 Relay O-Ringed End Plug Kit End Plugs (5) O-Rings (5) 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 the O-ringed Sonnax end plugs 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 Symptoms: Drops out of 4th Loss of 4th signal oil Loss of D3 oil No 4th Cause: The hammering affect of the 3-4 relay and/or 3-4 shift valves can cause the soft aluminum end plugs to wear, resulting in loss of 4th signal and/or D3 oil. Correction: Replace the worn OE end plugs with the O-ringed Sonnax end plugs to prevent loss of critical 4th signal and/or D3 oil.