SONNAX 700R4, 200-4R BOOST VALVE .423"
	Quantity in Basket: none Code: SNX-77917-01K Price: $21.83 Shipping Weight: 1.00 pounds
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A common problem with a 700-R4 transmission is a burned band and/or 3-4 clutch. This failure can be reduced by eliminating throttle boost oil leakage. The Sonnax replacement assemblies 77917-01K, 77917-471, and 77917-500 eliminate these problems with two closely toleranced, hardened steel parts: a throttle valve boost valve and an o-ringed throttle valve boost sleeve. The o-rings on the sleeve separate the throttle pressure and reverse boost circuits, thus providing additional protection against cross leaks. These o-rings also prevent oil loss between the outside diameter of the throttle valve sleeve and the pump body. The three kit numbers are used for different applications. Refer to the chart on the back for details.