4R70W Pump 1993-2003, new and ready to install. Fits the 4R70W. Ships fast from the USA.
Read this first: despite the listing name, this is not a complete front pump. It is the bearing and shim package a 1993-2003 Ford 4R70W needs during a rebuild or a pump job: a 7-piece thrust bearing set and 5 pump selective washers. It is the right buy if you are already inside an F-150, Expedition, Crown Victoria, Grand Marquis, Town Car or Mustang transmission and found a cracked Torrington race, a bearing that fell apart in the pan, or end play that measured out of spec when you pulled the pump. If you need the pump assembly itself, see the 4R70W pump for 1995-2003 instead.
The 4R70W stacks its clutch drums, sun gears and planetary carrier end to end down the input shaft, and every one of those parts spins at a different speed from its neighbor. Needle thrust bearings sit between them so the drums turn against rollers instead of rubbing metal on metal. This kit covers seven of those positions: forward clutch to long sun gear, planetary carrier to direct clutch drum, internal clutch to reverse clutch, direct clutch to output ring gear, output ring gear to case, reverse clutch to forward clutch drum, and long sun gear to short sun gear.
The selective washer lives behind the pump. Its thickness decides how much fore-and-aft play the whole geartrain has once the pump is bolted down. Too little and the bearings run preloaded and burn; too much and the drums walk, sealing rings wear their grooves and the forward and direct clutches can lose apply pressure. The five washers here step from .052 in to .121 in and are color coded so you can tell them apart at the bench: green #1 (.052), yellow #2 (.070), natural #3 (.087), red #4 (.104) and blue #5 (.121).
Check end play first, with the transmission still assembled: dial indicator on the input shaft, push it in, pull it out, note the travel and compare it to the figure in your service manual. Then drop the pan and look at what is on the magnet. Fine gray paste is normal clutch wear. Slivers, needle rollers or chunks of a bearing race mean something in the stack is coming apart. If the truck is also slipping or shifting late, read the 4R70W F-150 common problems guide so you are not chasing a valve body issue with bearings.
This set is cataloged for the AODE, 4R70W, 4R70E, 4R75W and 4R75E families, 1993 through 2003 Ford, Lincoln and Mercury cars, trucks and vans. On a 4R70W that means the original design built before the 2004 change. ATRA's interchange notes say the 2004-up sun shell uses a thicker two-piece bearing and a sun gear height cut by .030 in, and that the sun shell, bearing and forward sun gear have to be changed as a set, so this early kit is not the right bearing package for a 2004-2008 unit. Lay your old bearings next to the new ones before installing, and if you are unsure which design you have, send us the year and VIN. More parts for this unit are on the 4R70W parts page.
| Fits | 4R70W 1993-2003 |
| Part type | Pump |
| Condition | New |
| 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.
No. It is a thrust bearing set and pump selective washer kit. The washer goes behind the pump and sets end play, which is why the kit is often filed under pump parts. If you need the pump body, gears and stator support, buy a complete pump.
It is not the correct set for 2004-up units. Ford changed to a thicker two-piece bearing at the sun shell and shortened the sun gear for 2004, so the bearing stack is different. This kit is for the 1993-2003 design.
Measure input shaft end play with a dial indicator after the pump is torqued. If it is over spec, step up to a thicker washer; if it is tight, go thinner. The washers are color coded from green .052 in up to blue .121 in.
On a rebuild, yes. The rollers can be pitted or the cages cracked where you cannot see it, and a failed bearing sends debris through the whole unit. The kit costs far less than redoing the job.
MERCON V. Ford's own MERCON V product page also warns not to use it where MERCON LV, SP or ULV is specified, so do not top off with a newer fluid by mistake.
