How do I identify what Chevy transmission I have?
Identifying the transmission in your Chevy vehicle is crucial for maintenance, repairs, or upgrades. With so many transmission models available, it can be challenging to determine which one is in your car. In this guide, we’ll walk you through the steps to identify your Chevy transmission accurately and efficiently.
Why Knowing Your Transmission Matters
Your vehicle’s transmission is one of its most critical components. Knowing the exact model helps ensure you get the right parts, fluids, and services. It also aids in diagnosing issues and understanding your vehicle’s performance capabilities.
Steps to Identify Your Chevy Transmission
Follow these steps to determine which transmission your Chevy vehicle has:
- Check the Owner’s Manual: The easiest way to identify your transmission is by consulting your vehicle’s owner’s manual. It typically lists the transmission type and specifications.
- Look for the RPO Code: Chevy vehicles often have a Regular Production Option (RPO) code sticker located in the glove box, on the driver’s side door jamb, or under the hood. Look for codes like “M30” (4L60E) or “M32” (6T70), which correspond to specific transmission models.
- Inspect the Transmission Pan: The shape and size of the transmission pan can help identify the model. For example:
- The 4L60E has a rectangular pan with 16 bolts.
- The 6L80E has a more irregular shape with 17 bolts.
- Check the VIN: Your Vehicle Identification Number (VIN) contains information about your car, including the transmission type. Use an online VIN decoder or consult a dealership for assistance.
- Consult a Professional: If you’re still unsure, take your vehicle to a trusted auto repair shop. Professionals can quickly identify your transmission using diagnostic tools and expertise.
Common Chevy Transmissions
Here are some of the most common Chevy transmissions and their applications:
- 4L60E: A popular 4-speed automatic transmission used in trucks, SUVs, and performance cars from the 1990s to the early 2000s.
- 6L80E: A 6-speed automatic transmission found in newer trucks and SUVs.
- TH350 and TH400: Classic 3-speed automatic transmissions used in older Chevy models.
- CVT: Continuously Variable Transmissions are becoming more common in modern Chevy sedans for improved fuel efficiency.
Tips for Maintaining Your Chevy Transmission
Once you’ve identified your transmission, proper maintenance is key to its longevity. Here are some tips:
- Use the recommended transmission fluid for your specific model.
- Schedule regular transmission fluid changes as outlined in your owner’s manual.
- Address any leaks or unusual noises promptly to avoid further damage.
- Have your transmission inspected by a professional if you notice slipping, rough shifting, or delayed engagement.
Conclusion
Identifying your Chevy transmission doesn’t have to be a daunting task. By following the steps outlined above, you can confidently determine your transmission type and ensure your vehicle receives the care it needs. If you’re ever in doubt, don’t hesitate to reach out to a trusted auto repair shop like Kevin’s Autos for expert assistance!
Frequently Asked Questions
What Chevy trucks have the 6L80 transmission?
The 6L80E transmission is widely used in such popular GM applications as the Silverado and Sierra trucks, Tahoe, Suburban, Denali, Hummer H2, Cadillac Escalade, STS and CTS, Camaro, and G8 .
How do I tell what transmission I have on my Chevy?
The easiest method of GM automatic transmission identification is to examine the transmission pan. New transmission designs came with new, unique pan shapes, and the general shape of the pan often paints a fairly clear picture of which automatic transmission you are dealing with.
How do I know what transmission I have in my Chevy?
The easiest method of GM automatic transmission identification is to examine the transmission pan. New transmission designs came with new, unique pan shapes, and the general shape of the pan often paints a fairly clear picture of which automatic transmission you are dealing with.
What year Silverado has 6l80 transmission?
The 6L80 began manufacture in 2005 for release in 2006 model year GM vehicles, persisting until at least 2016 in both 6L80 and 6L90 versions.
Will the VIN number tell me what transmission I have?
Vehicle Description Section
The fourth through eighth digits describe your vehicle's model, body type, restraint system, transmission type, and engine code. The ninth digit is the check digit, which is used to detect fraudulent VINs.
How do I know if I have a 6L80 or 6L80E?
However, your identification method depends primarily on whether the transmission is still mounted in the vehicle or has been dismounted. If the 6L80E transmission is still mounted in the vehicle, you can only identify it using its RPO tag in the vehicle's glove compartment.
What does a TH350 look like?
The 350 transmission is 21-3/4" long and its one-piece case is cast of aluminum alloy. It features an integral bellhousing. The TH350 weighs 120 lbs. It has a distinctive oil pan that is chamfered at the passenger side, rear corner.
How do I tell if I have a TH350 or TH400?
If you are trying to determine the TH400 from another in a vehicle, a fast way to tell is to look at the kick down mechanism. The TH400 uses an electrical slide switch, which is controlled by the throttle linkage. The TH350 uses a mechanical cable kick-down mechanism that is attached to the throttle linkage.
Is there a difference between a 6l80 and a 6L80E?
This 100%. E stands for electronically controlled. There are not any 6l80 transmissions that are not electronically controlled.
Where is the transmission model number?
Locating the transmission tag and identifying the model designation. Transmission model designation (i.e. RT-12609A), and other transmission identification information, are stamped on the transmission tag which is attached to the side of the transmission.
