The 4R75W is Ford's HD version of the 4R70W. Both look similar but have important differences. Here's the comparison.
4R70W basics
- 4-speed automatic with overdrive
- 1993-2008 production
- ~360 ft-lb stock capacity
- Daily driver applications
Read our 4R70W rebuild guide
4R75W basics
- 4-speed automatic with overdrive
- 2003-2008 production
- ~430+ ft-lb stock capacity
- HD applications
Key differences
Strength
- 4R70W: ~360 ft-lb
- 4R75W: ~430+ ft-lb
Output shaft
- 4R70W: Standard
- 4R75W: Stronger output shaft material
Intermediate band
- 4R70W: Standard
- 4R75W: HD intermediate band
Direct clutch
- 4R70W: Standard friction count
- 4R75W: Often has additional friction plate
Applications
- 4R70W: F-150, Mustang, Crown Vic, Lincoln Town Car
- 4R75W: F-150 HD, Expedition (with HD towing), F-150 EcoBoost trans (some)
Parts interchange
Mostly interchange:
- Most internal hard parts
- Bushings
- Most clutch components
- Solenoids and TCM
Some differences:
- Output shaft (4R75W stronger)
- HD intermediate band (4R75W)
- Direct clutch pack (4R75W has more)
When to use which
Daily driver / mild use:
- 4R70W is fine
- Read our 4R70W rebuild guide
Tow rig / HD use:
- 4R75W preferred
- Or 4R70W with HD upgrades
Performance build:
- Either with race-spec components
- 4R75W has stronger starting point
Rebuild cost
Same range:
- DIY: $400-700
- Shop: $1,500-2,500
Read our 4R70W rebuild guide (applies to both)
Identification
By VIN:
- Verify with VIN-specific lookup
- 4R75W usually in HD-rated trucks
- 4R70W usually in standard-duty trucks
By case markings:
- Difficult to tell externally
- Internal parts inspection reveals difference
Need Ford 4R70W/4R75W parts? Shop our 4R70W catalog. Master kits, HD bands, Sonnax upgrades. Free shipping over $70.
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