Sonnax TV Boost Valve Kit - 77917-02K

A common problem in GM 200-4R and 4L60 transmissions is burned bands and/or 3-4 clutches. This failure can be reduced by eliminating throttle boost oil leaka

Sonnax 77917-04K TV Boost Valve Kit .500 Dia., Factory-Style Sleeve (No O-Ring)

SONNAX TRANSMISSION & VALVE BODY PARTS & TOOLS

Sonnax Boost Valve Kit - 77898E-K

SONNAX TRANSMISSION & VALVE BODY PARTS & TOOLS

48RE Sonnax Sure Cure Valve Body Kit Complete SC-48RE (03-10) - Trans Parts Direct

Whatever It Takes Transmission Parts

Sonnax Oversized Primary Pressure Regulator & Reverse Boost Valve Kit - 47740-02K

Sonnax Oversized Pressure Regulator & Boost Valve Kit - 104520-07K

Sonnax Oversized Pressure Regulator Valve - 77917-06

Sonnax Oversized Pressure Regulator Valve - 77917-07