Product Description
4R70E 4R70W 4R75E 4R75W Oversized Overdrive Servo Regulator Valve Kit
FITS 2001 AND UP UNITS ONLY!
Sonnax Part Number: 76948-59K
TOOLING REQUIRED
- F-76948-TL59
- VB-FIX
Common problems in Ford 4R70E, 4R70W, 4R75E and 4R75W transmissions include a burned overdrive band, loss of 4th Gear, and/or a 4-3-Neutral shift pattern. These problems can be caused by wear at the innermost diameter of the overdrive servo regulator valve due to constant oscillation. Excess wear allows valuable regulated overdrive oil to leak, preventing proper regulation of the overdrive servo. Sonnax oversized overdrive servo regulator valve kit 76948-59K maintains critical tolerances that re-establish the hydraulic integrity of the circuit.
- Hardcoat anodized aluminum valve combats premature wear and maintains proper clearance at all temperature ranges
- Closely toleranced sleeve improves sealing
- Salvages valve bodies with wear of the overdrive servo regulator valve bore
PACKAGE CONTAINS
- Overdrive Servo Regulator Valve
- Spring
- Boost Valve
- Boost Sleeve
SYMPTOMS
- 4-3 Neutral
- No 4th
- Burnt OD band
CAUSE
CORRECTION
Recondition the valve bore and install Sonnax oversized overdrive servo regulator valve kit to restore proper hydraulic function of the overdrive servo circuit.
