Transmission Parts GM 4T60 4T65-E 4T60-E Valve Body Valve / Sleeve

Symptoms:

1-2 Flare
Delayed engagement
Low Reverse pressure
1-2 Band burned

Cause:

Continuous reciprocation of the 1-2 (Forward) and Reverse servo boost valves wearing the valve body bores.

Correction:

Sonnax oversized 1-2 and Reverse servo boost valve kit restores hydraulic integrity, and has increased valve-to-bore contact to prevent leakage.

4T60, 4T60-E, 4T65-E

Oversized 1-2 & Reverse Servo Boost Valve Kit
Part No. 84754-40K

Fits either of 2 locations

Tooling:

84754-TL2
84754-TL4

You need this if... View Instructions Find a Distributor

In GM 4T60, 4T60-E and 4T65-E units, the continuous stroking of the 1-2 (Forward) and Reverse servo boost valves wear away at the valve bore, creating excess clearance and reduced apply pressures. This can lead to 1-2 band slippage, delayed engagements, 1-2 shift flares, and decreased Reverse pressure. Sonnax oversized 1-2 and Reverse servo boost valve kit 84754-40K that will restore the hydraulic integrity and more than doubles the valve-to-bore contact area to prevent leakage.

Hardcoat anodized aluminum valve combats premature wear
Valve will fit both the Forward and Reverse applications

Note

This kit only contains one valve. If both bores need to be repaired, two kits are required.

Contents

Valve
Spring Long
Spring Short
Coiled Spring Pin

Valve Body Layout

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.