What does Z66 mean on a Chevy Avalanche?
The "Z66" code on a Chevy Avalanche refers to the vehicle's suspension package. It indicates that the Avalanche is equipped with the Z66 Off-Road Suspension package, which is designed to enhance the vehicle's performance and capabilities when driving on rough or uneven terrain.
Understanding the Z66 Suspension Package
The Z66 Off-Road Suspension package is an optional upgrade available for the Chevy Avalanche. It includes several key components that differentiate it from the standard suspension setup:
- Increased Ground Clearance: The Z66 package raises the Avalanche's ride height, providing more clearance between the vehicle's undercarriage and the ground. This helps improve the Avalanche's ability to navigate over obstacles and uneven terrain.
- Upgraded Shocks and Springs: The Z66 package features heavy-duty shock absorbers and coil springs that are designed to provide a more robust and durable suspension system. This helps the Avalanche better handle the stresses of off-road driving.
- Skid Plates: The Z66 package includes additional underbody skid plates that help protect the Avalanche's vital components, such as the fuel tank and transfer case, from damage when driving over rough terrain.
- Larger Tires: The Z66 package typically includes larger, more aggressive tires that provide better traction and off-road capability.
The Z66 Off-Road Suspension package is designed to enhance the Avalanche's performance and capability when driving on unpaved roads, trails, or other challenging terrain. It is a popular option for Avalanche owners who frequently engage in outdoor activities or need to navigate rough conditions.
Identifying the Z66 Package
The "Z66" code is typically found on the vehicle's identification or certification label, which is usually located on the driver's side door jamb or the glove box. This code can also be found in the Avalanche's owner's manual or by checking the vehicle's specifications.
It's important to note that the Z66 package is just one of several suspension and off-road-focused options available for the Chevy Avalanche. Depending on the specific model and year, the Avalanche may also be available with other suspension packages, such as the Z71 Off-Road package or the Z85 Heavy-Duty Suspension package.
What is the RPO code Z66?
The first way to determine if it is a Z-66, as mentioned above, is to look inside the glovebox door for the RPO code Z66 which indicates the APPEARANCE PACKAGE PREMIUM RIDE SUSPENSION.
What does Z66 mean?
The Z66 package was an “On-road” suspension package that had a “look” like the Z71 Off-Road suspension, but was designed for on-road comfort and ride quality. The Z66 is a 2WD road suspension with specific wheels, locking differential, specific shocks and spring tuning.
What does the Z stand for in Chevy?
The “Z” indicates the highest level of Luxury Touring. So, the main difference between LT and LTZ trims are features. You'll notice additional features like the ones below show up in the LTZ trim when you do a Chevy LT vs. LTZ comparison: Chevy LTZ Features.
How many miles can a 2004 Chevy Avalanche go?
Fuel & MPG
| Range in miles (city/hwy) | 434/558 mi. |
|---|---|
| Fuel tank capacity | 31 gal. |
What is code Z66?
ICD-10 code Z66 for Do not resuscitate is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
How much can a 2004 Chevy Avalanche Z66 tow?
Overview
| Combined MPG | 15 MPG |
|---|---|
| Total Seating | 6 |
| Bed length | 63 in. |
| Payload Capacity | 1,322 lbs. |
| Towing Capacity | 8,300 lbs. |
What is the Chevy Avalanche Z66 package?
Offered between 2001 and 2006 for the Avalanche 1500 2WD, the Z66 Premium On-Road Package was designed to deliver on-road comfort and capability, plus a dash of off-roader styling, all without going whole hog with the Z71 package.
Are Chevy Avalanches good for towing?
It can haul a payload of up to 1,300 pounds. The average bass boat you see people towing around weighs about 1,200 pounds, so that means the Avalanche could theoretically tow about 6x that weight.
When to use Z66?
Z66 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Z66 became effective on October 1, 2024.
What does Z stand for Chevy?
The “Z” indicates the highest level of Luxury Touring. So, the main difference between LT and LTZ trims are features. You'll notice additional features like the ones below show up in the LTZ trim when you do a Chevy LT vs. LTZ comparison: Chevy LTZ Features.
