2022 Chevrolet Equinox Transmission & Axle Gear Ratios

Transmission gear ratios

The 2022 Chevrolet Equinox comes standard with a reliable 6-speed automatic transmission across all trims. This transmission is designed to provide a good balance of fuel economy and responsive power delivery for the 1.5L turbocharged engine.

Available axle ratios

The 2022 Chevrolet Equinox offers a single axle ratio across all models equipped with the 1.5L turbocharged engine and 6-speed automatic transmission. This ratio is carefully selected to optimize the vehicle's performance for a wide range of driving conditions, balancing acceleration, fuel efficiency, and light-duty towing capabilities.

How to identify your axle ratio

For the 2022 Chevrolet Equinox, identifying your axle ratio is a straightforward process, primarily by checking the RPO (Regular Production Option) sticker. Chevrolet, like other General Motors (GM) vehicles, places this sticker in a prominent location, usually inside the glove compartment or on the driver's side door jamb. Look for the three-digit RPO code "GH0," which corresponds to the 3.87 axle ratio. It's uncommon to find an axle tag on these types of vehicles as the axle is an integral part of the transaxle assembly.

Towing vs MPG impact

In general, the axle ratio significantly impacts a vehicle's towing capacity and fuel economy. A numerically lower axle ratio (e.g., 3.08, 3.42) means the engine will operate at lower RPMs for a given road speed, leading to better fuel economy on the highway. However, this also means less torque multiplication at the wheels, which can reduce towing capability and acceleration.

A numerically higher axle ratio (e.g., 3.73, 4.10) results in the engine operating at higher RPMs for a given road speed. This provides greater torque multiplication, improving acceleration and towing performance. The trade-off, however, is generally reduced fuel economy, especially at highway speeds.

For the 2022 Chevrolet Equinox, with its singular 3.87 axle ratio, Chevrolet has aimed for a balanced approach. This ratio, combined with the 6-speed automatic transmission, works to ensure the 1.5L turbocharged engine delivers adequate power for urban and highway driving while maintaining respectable fuel efficiency. While the Equinox is capable of light towing (up to 1,500 lbs), it's not designed for heavy-duty hauling, and the fixed axle ratio reflects this intended use. Drivers prioritizing fuel economy over towing in a small SUV will find the Equinox's setup suitable, while those needing more robust towing capabilities might consider vehicles with higher available axle ratios or different powertrain configurations.

Common issues

Given that the 2022 Chevrolet Equinox utilizes a transaxle system where the transmission and differential are integrated, common issues related to "axle" components are often intertwined with transmission health. The 3.87 axle ratio itself is not known for specific common issues directly attributable to the ratio. However, like any mechanical component, issues can arise over time.

• Carrier Bearing Wear: Within the transaxle, the carrier bearings support the differential. Wear here can lead to whining or howling noises that change with vehicle speed, often becoming more noticeable during acceleration or deceleration. This is less about the ratio and more about the bearing's lifespan and lubrication.
• Limited-Slip Clutch Wear (if applicable): While less common in front-wheel-drive or standard all-wheel-drive Equinox models, if an electronic limited-slip differential were present, clutch wear could be an issue, leading to chattering or clunking during turns. The Equinox typically employs an open differential or a basic all-wheel-drive system that mimics limited-slip functionality electronically, making mechanical clutch wear less of a concern.
• General Drivetrain Noise: Any unusual noises (whining, humming, grinding) coming from the drivetrain could indicate issues with bearings, gears, or other internal components within the transaxle. It's crucial to have these investigated by a qualified technician promptly to prevent more severe damage.

The 6T40 6-speed automatic transmission used in the Equinox has been around for some time, and while generally reliable, some owners have reported issues like delayed shifts or harsh engagement, which could indirectly sometimes be perceived as axle-related if the differential components were also affected within the transaxle assembly. Regular fluid changes are paramount to the longevity of both the transmission and its integrated differential.

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