Product Overview
Boost Valve & Sleeve Kit (OEM Ratio, Includes O-Rings) 76990K
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Boost Valve & Sleeve Kit (OEM Ratio, “Factory” Style) 76990-03K
4R44E, 4R55E, 5R44E, 5R55E Boost Valve & Sleeve Kit (OEM Ratio) N.I. S56741F (Sonnax 37947-01K)
AOD, AODE, 4R70 Automatic Transmission Pressure Regulator Boost Valve & Sleeve Kit (All) (76948-02K)
4R44E, 4R55E, 5R44E, 5R55E Boost Valve & Sleeve Kit (Increased Ratio)(1995-UP) N.I.S56741FA (Sonnax 37947-03K)
Pressure Regulator Valve & Boost Kit O.S. (1996-Up) (All) (req T-F-76890-TL or T-76890-TL4, T-VB-FIX) (T-76890-BST Bore Sizing Tool is Recommended) (76948-17K)