Product Overview
Boost Valve & Sleeve Kit (OEM Ratio, “Factory” Style) 76990-03K
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Boost Valve & Sleeve Kit (OEM Ratio, Includes O-Rings) 76990K
Ford AOD 4-Speed Automatic Transmission Boost Valve & Sleeve Kit (Large Ratio, Factory Style) 76990-04K1980 - 1993 Ford Thunderbird RWD1984 - 1993 Ford Mustang RWD1987 - 1991 Ford LTD Crown...
4R44E, 4R55E, 5R44E, 5R55E Boost Valve & Sleeve Kit (OEM Ratio) N.I. S56741F (Sonnax 37947-01K)
4R44E, 4R55E, 5R44E, 5R55E Boost Valve & Sleeve Kit (Increased Ratio)(1995-UP) N.I.S56741FA (Sonnax 37947-03K)
Ford AOD 4-Speed Automatic Transmission Throttle Valve Plug & Sleeve Kit (Factory Style) 76989-03K1980 - 1993 Ford Thunderbird RWD1984 - 1993 Ford Mustang RWD1987 - 1991 Ford LTD Crown Victoria...