Product Description
200-4R 700R4 TV Boost Valve Kit
0.500'' Bore Diameter | O-Ring Style
Sonnax Part Number: 77917-500
NO TOOLING REQUIRED
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 drop-in 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 minimal line pressure in V8 applications, use Sonnax TV boost valve kit 77917-01K.
- 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-Rings prevent loss of oil between the outside diameter of the throttle valve sleeve and pump body
- Drop-in Zip Valve™ parts install quickly and easily
PACKAGE CONTAINS
- Valve
- Sleeve .500" Dia.
- O-Rings (2)
SYMPTOMS
- Soft slide shifts
- 3-4 Clutch burned
- Reduced band life
CAUSE
MTV boost loss and insufficient line rise.
CORRECTION
Sonnax drop-in TV boost valve kits prevent oil loss between the outside diameter of the TV sleeve and the pump body.
Product Videos
Custom Field
Requires Tooling No
