4R70W Complete Transmission Rebuild Kit with Steels

This is a complete overhaul set for the Ford 4R70W, and it covers the 4R75W, 4R70E and 4R75E variants built 2004 and up. Unlike a banner kit, this one ships with the steel plates as well as the frictions, so you are not hunting down steels separately when the old ones come out blued or coned. Nine components come in the box: gasket and seal set, friction plates, steel plates, band, thrust washers, filter, piston kit, and the O-ring and lip seals for the case and pump.

Behind these units the usual story is a worn overdrive or forward pack, a glazed intermediate band, and a hard 1-2 that came from a cracked separator plate. This kit replaces every wear item that comes apart during a full teardown: the direct, forward, overdrive and coast clutch frictions and steels, the reverse band, and the bonded piston set so you are not reusing 150,000-mile rubber on a fresh build. It fits the 4R70W behind the 4.6L and 5.4L in F-150, E-150, E-250, Expedition, Explorer and Crown Victoria applications for the 2004-up calibration.

On the bench, soak the friction plates in clean Mercon V for at least fifteen minutes before assembly, then check clutch pack clearance against the service manual range before the drums go back in the case. Two things this kit does not include and you should order alongside it if yours are suspect: the valve body separator plate, which cracks at the servo feed on high-mileage units, and the center support ring. Manufacturer part number dk7600ks. Ships at roughly 15 lb in an 18 x 16 x 5 in box.