What transmission does an Avalanche have?
The Chevrolet Avalanche, a distinctive blend of pickup and SUV built on the Silverado platform, uses automatic transmissions rather than manual gearboxes. The transmission type changed over its production run: early models carried a four-speed automatic, while later models adopted a six-speed design.
Transmission options by generation
Below is a practical snapshot of the transmissions typically found in Avalanches across their production years. Year and engine options can affect the exact setup, so it’s important to verify for a specific vehicle.
- 2002–2006 Avalanche: GM 4L60-E four-speed automatic transmission.
- 2007–2013 Avalanche: GM 6L80 six-speed automatic transmission (the standard configuration for most setups).
In practice, this means the Avalanche began with a traditional four-speed auto and shifted to a modern six-speed in later years, offering smoother shifts and better highway efficiency for the lighter chassis.
How to confirm your Avalanche's exact transmission
To be absolutely sure which transmission your particular Avalanche uses, consider the following verification methods:
- Check the vehicle’s build sheet or window sticker (RPO codes) for references to 4L60-E or 6L80.
- Lookup the VIN with Chevrolet/GM resources or a trusted VIN decoder to pull the original equipment list, including the transmission specification.
- Inspect the transmission itself for identification markings or stamps that indicate the model (e.g., 4L60-E or 6L80).
- Review service records or contact a dealership to confirm whether the transmission has been replaced or upgraded.
These steps help ensure you know the exact transmission installed in your Avalanche, especially if the vehicle has undergone modifications, replacements, or rebuilds.
Summary: The Avalanche’s transmission evolved from a 4-speed automatic (4L60-E) in its early years to a 6-speed automatic (6L80) in later models, with the exact option depending on the model year and engine configuration. Always verify using official records or a VIN-based lookup for your specific vehicle.
What transmission does a 2008 Avalanche have?
Drivetrain
| Transmission | 4-speed automatic |
|---|---|
| Drive type | Rear wheel drive |
What transmission came in the 2004 Chevy Avalanche?
4-speed 4L60-E automatic
First generation (2001–2006)
| First generation | |
|---|---|
| Transmission | 4-speed 4L60-E automatic 4-speed 4L85-E automatic |
| Dimensions | |
| Length | 2002–03: 221.7 in (5,631 mm) 2004–06: 221.6 in (5,629 mm) |
| Width | 79.8 in (2,027 mm) |
What transmission does a 5.3 Avalanche have?
Drive every Avalanche in 2013 got a 5.3 L naturally aspirated V8 making 320 horsepower 335 pound- feet of torque they all got a six-speed automatic transmission and you could get either two wheel or
What years of Chevy Avalanche to avoid?
Years to be cautious with include the 2003 (transmission problems), 2005 (3-4 clutch failure), and models with the Active Fuel Management (AFM) system, which was introduced around 2007. The 2011 and 2013 models also have notable recall issues.
This video discusses common problems with the Chevrolet Avalanche, including issues with the AFM system: 49sCCV TVYouTube · Apr 2, 2019
Years with significant issues
- 2003: Has a history of significant transmission problems, which can range from shifting issues to complete failure.
- 2005: Particularly prone to 3-4 clutch failure, which can leave the transmission stuck in second gear.
- 2011: Subject to recalls for rear axle cross pins that were improperly heat-treated, potentially leading to fracture and displacement.
- 2013: Has recalls for issues with the park lock cable or steering column lock actuator gear.
Other considerations
- 2007-2013 (Second Generation): This generation introduced the AFM system, which can lead to engine misfires, rough idling, and eventual engine damage if not properly maintained.
- Pre-2007: The engine in the first generation (2002-2006) is generally considered more durable, though the transmission may require more maintenance, and the plastic body cladding can fade and degrade over time.
- Rust: Regardless of the year, be cautious with models from rust-prone areas. The Avalanche's bed is also not watertight and tends to leak.
How to choose
- If engine longevity is a priority, consider the 2002-2006 models without AFM, but be prepared for potential transmission work.
- If you prefer a more modern vehicle, look for a model year that avoids the specific problems listed above. Even though the 2011 and 2013 models have specific recalls, they are generally considered reliable after the issues are addressed.
