Sonnax 124740-03K for GM 6F50/6F55/6T40/6T70/6T75 Isolator Valve Kit
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Sonnax 124740-03K for GM 6F50/6F55/6T40/6T70/6T75 Isolator Valve Kit

$21.04
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Modified Item: NoCustom Bundle: NoInterchange Part Number: 124740-03KManufacturer Part Number: 124740-03KBrand: Sonnax / TJSNon-Domestic Product: NoManufacturer Warranty: No Warranty 6F50, 6F55, 6T70 (Gen. 1), 6T70 (Gen. 2), 6T75 (Gen. 1), 6T75 (Gen. 2), 6T80 (Gen. 2) Isolator Valve KitPart No. 124740-03K Vehicles with listed Ford transmissions may exhibit no line rise or low line pressure due to excess wear in the isolator valve bore. The isolator valve is in the main line pressure circuit and acts as a damper to smooth pulses from the pressure control solenoid. In addition to this wear, the OE isolator spring is under high stress and commonly breaks. Spring failure allows the end plug to shift toward the middle of valve body, allowing unrestricted exhaust for main line pressure. Spring breakage can also cause isolator valve to jam in the bore, preventing the dampening effect that protects against line pressure instability. Either of these concerns can lead to undesirable shift o

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