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Your cart is empty.Superior Ford E4OD E40D 4r100 Automatic Transmission Shift Correction Kit with boost Valve 1989-up. This valve body kit deals with these problems: Converter shudder Converter burn up Reverse problems Weak shifts Stack shifts Lube problems Front seal blow out New boost valve included to replace worn OE valve. One KE40D kit does regular, heavy duty and diesel applications. The Superior kit makes extensive pump modifications needed to avoid pump failure. Shift slippage is a real concern in this transmission. The Superior kit cleans up this problem very effectively. The KE4OD Shift Correction Package includes a metal replacement drain back valve to replace the O.E. plastic valve. The O.E. valve can melt, cutting off lube to the overdrive planets causing failure.
N
Reviewed in the United States on October 23, 2024
it does what it says, much smoother operation, tricky to install, check all pistons for wear.
SmokeyTheBear
Reviewed in the United States on July 19, 2016
I installed just the valve springs, and my 1-2 shift is much rougher than before. Feels like the car is 'clunking' into gear, and the revs are much higher (2500 now, 2000 before). I am going to remove the smallest spring and see if it helps smooth things out. Will update my review once it's complete.Instructions are very clear, and part quality is very high.
Gordon Tallent
Reviewed in the United States on March 18, 2016
I have only had it in a day but so far I do not have any trouble backing up as the engine would want to stall in reverse.
DevonD
Reviewed in the United States on July 17, 2015
Sold my 99 Ford F-250 before installing, but looked like all of the springs and parts were of good quality.
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