The 4R70W (and its older sibling AODE) is Ford's 4-speed RWD workhorse. Common rebuild touch points: forward drum, reverse clutch, valve body. Stock the high-failure parts and you can turn one in a day.
Years
1993-2008
Fits
Ford F-150, Crown Vic, Mustang, Expedition
Parts In Stock
Full catalog at Gearbox Insider
Ship Time
Same-day before 2pm ET
Common 4R70W Failures & Fixes
Use this as a starting point for diagnosis. Click through to the specific part once you've narrowed it down.
| Symptom | Most Likely Fix |
|---|---|
| No reverse | reverse clutch pack |
| Slipping forward | forward drum and forward clutches |
| TCC slip | TCC solenoid and apply valve |
| Hard 1-2 shift | 1-2 accumulator piston |
What's In the 4R70W Catalog
The full Sonnax-grade aftermarket and OE-equivalent catalog for the 4R70W family is on Gearbox Insider. That's where the inventory lives, ships from, and updates in real-time.
- Master rebuild kits (gaskets, seals, friction modules)
- Valve body kits (Sonnax)
- Solenoid sets (shift, EPC, TCC)
- Speed sensors (ISS & OSS)
- Clutch packs & bands
- Pumps, drums, planets, sprags
- Pressure regulator & boost valve kits
- Bushings, bearings, thrust washers
Why Buy From Us
Spec parts
not "compatible"
not "compatible"
Ship before
2pm Eastern
2pm Eastern
Shipping
no minimum
no minimum
Built by & for
transmission pros
transmission pros
Related Guides
Diagnostic and rebuild guides for the 4R70W on Gearbox Insider:
Need It Today?
Same-day ship before 2pm Eastern. Order now, on your bench tomorrow.
Order 4R70W Parts