4R70W Shift Kit 1991-2013, new and ready to install. Fits the 4R70W. Ships fast from the USA.
This is a TransGo shift kit for the Ford 4R70W, the four-speed automatic behind the 4.6L and 5.4L in 1993-2008 F-150s and Expeditions, the Mustang, the Crown Victoria, Grand Marquis and Town Car, and the Navigator. TransGo sells one valve body kit, the SK AODE, for the whole family from 1991 on, which is why this listing carries a 1991-2013 range. Most buyers land here with a 4R70W that bangs into second on a kickdown, takes a long lazy 2-3, or just came apart with a burnt overdrive band or direct clutch.
The 4R70W picks its gears with two on/off shift solenoids, but how hard each clutch and band applies is decided by line pressure from the EPC solenoid and by the accumulators that soften each shift. As the aluminum valve body wears, the solenoid regulator and pressure regulator valves leak, pressure sags, and every shift stretches out. That overlap is heat, and heat is what kills the overdrive band and direct clutch. TransGo's kit replaces the solenoid regulator valve with a no-stick version, drops in a new pressure regulator valve, upgrades accumulator springs, and adds an EPC relief system so a pressure spike cannot break hard parts. It also includes new forward clutch sealing rings and a plate saver for the 3rd accumulator area, where separator plates crack.
A shift kit will not fix wiring, so scan first. A pushed-back terminal in the case connector or a bad internal lead frame can set solenoid codes and start the truck in a higher gear, and no valve body work will cure that. Check fluid level and condition, then compare what you feel with our 4R70W harsh shift guide and the F-150 shift problem walkthrough. If the electrical side tests clean and the complaints line up with the list above, the valve body is the right place to spend money.
The listing covers the 4R70W from 1991 through 2013 as one TransGo application. Within that span Ford changed a lot: the 1998 switch to a hard plastic lead frame, the 2001 deletion of the 2-3 accumulator stiffener plate, and separator plates that differ by year and calibration. The kit is written to handle those changes, but the instructions call out year-specific steps, so read them against your own separator plate and valve body before drilling or swapping anything. If you are not sure you have a 4R70W, send us your year and VIN, or browse the full 4R70W parts collection.
TransGo designed this kit to go in with the transmission still in the truck: drop the pan, unplug the lead frame, pull the valve body and lay every valve and spring out in order. Clean the body, inspect the bores, then follow the kit sheet step by step; some pieces are optional depending on use, and the sheet tells you which. Do not reuse a cracked or bowed separator plate. If the unit already slipped, the friction damage is done and a kit will only protect new parts, so plan on a 4R70W clutch module or the 4R70W sun shell if the old one is twisted. Refill with Mercon V, check level hot in Park, and clear adaptive memory before the road test.
| Fits | 4R70W 1991-2013 |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. TransGo lists one shift kit for the AODE, 4R70W/E and 4R75W/E from 1991 on, so the range reflects the kit's coverage of the whole family. The instructions include year-specific steps, so compare them against your separator plate. If you are unsure which unit you have, send us your year and VIN.
No. A shift kit corrects the pressure and timing problems that burn clutches and bands, but it cannot restore friction material that is already gone. If the unit slips or flares badly, install the kit during a rebuild with new clutches and a new overdrive band.
In most trucks and cars, yes. The valve body comes out from under the pan with the transmission in place. Work on a clean bench, keep the valves and springs in order, and follow the TransGo sheet step by step.
Mercon V for the 4R70W. Some late 4R75E applications switched to Mercon LV, so follow your owner guide. Check the level hot in Park after the first drive.
The kit firms up and shortens shifts so clutches spend less time slipping, but TransGo's goal is crisp, not jarring. Optional steps in the instructions let you match firmness to daily driving, towing or police use.
