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Main Regulator

Fits both Early Long AND Late Short

Style boost valve systems. No need to

stock both types anymore! Restores

pressure rise and protects transmission

from extreme reverse pressure due to

worn out / cross-leaking boost bushings.

New ORANGE

4L60E-Boost-472

Factory Replacement

.472 Boost Valve Kit

If Original Boost bushing type was:

Short – re-use Original PR spring.

Long- use New Yellow PR Spring.

Early Long Style Length = 1.910 in.

Late Short Style Length = 1.810 in.

(All Models)

New Spacer

New Boost Valve

New Bushing

Snap Ring

(All Models)

If you have a Turbine Sensor harness here,

Stop! Transmission removal will be required

& Pump must be removed from transmission

to install the New Boost Valve.

Do NOT attempt to pull or flex the connector

or harness in an attempt to install the Boost

Valve. Damage to the sensor or harness will

require transmission removal to repair.

Turbine Speed Sensor was introduced to

some models in 2006 & coverage was

expanded in 2007 & up models.

No speed sensor here? Great!

Proceed with installation.

Installation Note:

Boost Valve Location-Pan View

©TransGo 2016

2007 Model Shown

PAGE 1
Main Regulator 4L60E-Boost-472 Factory Replacement .472 Boost Valve Kit Fits both Early Long AND Late Short Style boost valve systems. No need to stock both types anymore! Restores pressure rise and protects transmission from extreme reverse pressure due to worn out / cross-leaking boost bushings. Early Long Style Length = 1.910 in. Late Short Style Length = 1.810 in. New ORANGE (All Models) If Original Boost bushing type was: Short – re-use Original PR spring. Long- use New Yellow PR Spring.