Product Description
Ford 4R44E/4R55E/5R55E Transmission Boost Valve & Sleeve Kit
This Steel Series replacement boost valve and sleeve kit gives you a perfectly dialed in ratio slightly higher than the stock valve. This new valve helps eliminate all the rpoblems associated with a worn out stock aluminum valve such as low line pressure, softer shifts and cross leaks. As with all Superior boost valves this valve is made out of 100% hardened steel.
Made In the USA!!
Superior Transmission Parts Number: STP-K037