The 4L70E is the 4L65E updated with the input speed sensor and improved valve body — common in 2006+ GM trucks. Treat the rebuild like a 4L60E with the updated sensor stack.
Years
2006-2013
Fits
GM HD trucks, Tahoe 1500, late Silverado
Parts In Stock
Full catalog at Gearbox Insider
Ship Time
Same-day before 2pm ET
Common 4L70E 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 |
|---|---|
| Check engine + harsh shifts | ISS sensor replacement |
| Lockup shudder | TCC PWM solenoid |
| Slipping under load | master rebuild kit |
What's In the 4L70E Catalog
The full Sonnax-grade aftermarket and OE-equivalent catalog for the 4L70E 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 4L70E on Gearbox Insider:
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