Product Description
4T60 4T60E 4T65E Oversized 1-2 & Reverse Servo Boost Valve Kit
FITS EITHER OF THE TWO LOCATIONS
Sonnax Part Number: 84754-40K
TOOLING REQUIRED
- 84754-TL2
- 84754-TL4
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
PACKAGE CONTAINS
- Valve
- Spring Long
- Spring Short
- Coiled Spring Pin
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.
Product Videos
Custom Field
Requires Tooling? Yes
