4R70W Shift Kit 1996-1997, remanufactured and ready to install. Fits the 4R70W. Ships fast from the USA.
Shopping for a shift kit because your 1996 or 1997 F-150, Mustang, Crown Victoria, Grand Marquis or Town Car has started shifting soft, flaring into the next gear, slipping in reverse or dropping out of lockup? Read this first: what ships under this listing is not a bag of springs and drill bits. It is a complete remanufactured 4R70W valve body for the 1996-1997 soft-wire design, with the shift-correcting valve updates already machined in and the solenoids included. You get the result most people buy a shift kit for, without taking the original valve body apart on the bench.
On the 4R70W, shift feel is decided inside the valve body. The main pressure regulator and boost valve set line pressure, the solenoid regulator valve feeds clean, steady oil to the shift and pressure-control solenoids, and the bypass clutch control sleeve and converter pressure valve manage torque converter lockup and cooler flow. When those bores wear, pressure leaks away and clutches apply slowly, which is exactly the slip that a classic shift kit tries to cover up with stiffer springs. This rebuild attacks the wear itself: the build sheet lists an updated pressure regulator valve, updated boost valve, updated TCC sleeve, updated torque converter pressure valve and updated solenoid regulator valve, with other updates done as needed, and every unit is tested on a valve body test stand before it leaves.
Rule out the cheap causes first: low or burnt fluid, a damaged case connector, and an electrical solenoid fault will all mimic a hydraulic problem. Our 4R70W shift solenoid symptoms and testing guide shows how to check solenoid resistance at the case connector, and the 4R70W harsh shift causes guide separates a pressure problem from a calibration or sensor problem. If codes are clean, the solenoids test good and the shifts still flare or the converter will not hold, worn valve body bores are the likely cause and this unit is the direct fix.
From 1993 through 1997 the 4R70W used a soft-wired internal harness with a white case connector. Ford switched to a black connector and a hard plastic lead frame in 1998, and the solenoids and harness do not interchange between the two designs; installing the wrong one is a known cause of multiple codes and erratic shifting. This unit is the 1996-1997 soft-wire version. Before ordering, pull the pan and confirm you have the soft-wire harness and white connector, or send us your year, model and VIN and we will confirm it. For the later hard-wire design, or anything else for this transmission, browse the 4R70W parts collection.
If your pressure-control solenoid has already failed electrically, a new 1992-1997 4R70W pressure control solenoid is listed separately. If you would rather keep your original casting and build it yourself, the loose 4R70W shift kit for 1991-2008 is the do-it-yourself route, but it will not repair worn bores.
| Fits | 4R70W 1996-1997 |
| Part type | Shift Kit |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is a complete remanufactured 4R70W valve body with the solenoids included. The valve updates a shift kit buyer usually wants, such as the pressure regulator, boost valve, TCC sleeve and solenoid regulator valve, are already done and the unit is bench tested, so there is nothing to drill or reassemble.
No. 1998 and later units use the black connector and hard plastic lead frame, and the solenoids and harness do not interchange with the 1996-1997 soft-wire design. A 1998-up truck or car needs the hard-wire version.
Ford used the 4R70W in the F-150, Mustang, Crown Victoria, Grand Marquis and Lincoln Town Car in those years, but engine and trim decided which automatic a given vehicle got. Confirm your transmission tag or send your VIN before ordering.
Use MERCON V and check the level hot with the engine running in park. Install a new filter and pan gasket at the same time so debris from the old valve body does not get pulled into the new one.
Yes. Clear the keep-alive memory with a scan tool or by disconnecting the battery so the computer drops the pressure adaptations it learned on the worn valve body, then drive it through several normal shift cycles.
No. It removes the low pressure and slow apply that burn clutches, but friction material that is already burnt has to be replaced. If the fluid is black and full of material, plan on a rebuild along with this unit.
