2004R 4L60 700R4 Transmission TV Boost Valve Kit Sonnax 77917-471 .471"

Brand: SONNAX Type: Pump component Manufacturer Warranty: Yes Part Brand: Sonnax Fitment Type: Direct Replacement Items Included: Boost Valve and Sleeve with O-rings Manufacturer Part Number: 77917-471 Universal Fitment: Yes Vintage Part: No Performance Part: Yes  200-4R, 4L60, 700R4 TV Boost Valve KitPart No. 77917-471 .471" Dia., O-Ring Style 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 leakage. The Sonnax TV boost valve kits 77917-01K (.423" dia.), 77917-471 (.471" dia.) and 77917-500 (500" dia.) eliminate these problems for a variety of applications. For higher line pressure for towing and off-road, use Sonnax TV boost valve kit 77917-471. Throttle valve boost valve and sleeve are made from made from hardened steel for better wear resistance O-Rings on sleeve separate throttle pressure and Reverse boost circuits, providing additional protection against cross-leaks O-R