Lisle 31510 Axle Nut Socket 9 Pin for GM - Durable 1/2 in Drive

In this review the Lisle 31510 axle nut socket is examined for mechanics and DIY owners who service heavy GM trucks. The bottom line: it is a purpose-built tool that removes and installs the circular hub nut on 2020 and newer Silverado and Sierra 2500/3500 dual rear wheel hubs, and its hardened 1/2 in drive and black oxide finish make it a dependable, long-lasting choice for anyone who needs a precise 9 pin engagement. For those who work on the specified chassis it delivers accurate fit and function without unnecessary extras.

Key Features

• Exact fit for GM hubs: Designed to engage the circular hub nut used on 2020 and newer Silverado and Sierra 2500/3500 trucks with 11.5 in and 12 in dual rear wheel hubs so removal and installation is straightforward.
• 9 pin engagement: The nine pin configuration secures the full-floating hub nut reliably, reducing slipping and rounding during service.
• Hardened 1/2 in drive: The socket is hardened for durability and accepts standard 1/2 in drive tools for easy use with common breakers and torque tools.
• Black oxide finish: The finish helps resist corrosion and gives the socket a work-ready appearance that holds up in a shop environment.
• Possible compatibility beyond listed trucks: May work on other vehicles that use a 2.97 in O.D. axle nut, offering some cross-application flexibility.
• Simple, single-purpose design: A no-frills tool focused on the axle nut task, making it quick to identify and use when servicing hubs.

Who It's For

The Lisle 31510 is for professional technicians and seasoned DIYers who regularly service heavy-duty GM trucks, specifically 2020, 2021, and some 2022 Silverado and Sierra 2500/3500 models with dual rear wheels. It is most valuable when working on full-floating hubs that require a 9 pin socket to engage the circular nut accurately.

Those who should look elsewhere include owners of light-duty vehicles or trucks with different axle nut diameters and retirees or casual users who rarely perform hub service; if you do not have a matching 2.97 in O.D. axle nut or the specified GM hubs, a more universal socket set may be a better choice.

Pros & Cons

Pros

• Fits the specified GM hub nuts precisely, minimizing rounding and slippage during removal.
• Hardened 1/2 in drive construction gives durability under high torque conditions.
• Customers report good build quality and value for money, and at least one noted compatibility with an older 2012 chassis cab.
• Black oxide finish adds corrosion resistance for workshop longevity.

Cons

• Very application-specific; only suitable where the axle nut matches the 2.97 in O.D. dimension and 9 pin pattern.
• Not a multi-size tool, so users needing broad compatibility will need additional sockets or adapters.

Specifications

Product name	Lisle 31510 Axle Nut Socket, 9 Pin
Primary application	Hub nut removal/installation on specified GM 2500/3500 trucks
Compatible models	2020, 2021, some 2022 Silverado and Sierra 2500/3500
Axle nut O.D.	2.97 in (may work on other vehicles with same O.D.)
Drive size	1/2 in drive
Finish	Black oxide
Socket engagement	9 pin circular nut engagement

Our Verdict

The Lisle 31510 is a focused, well-built axle nut socket that excels when used on the intended 2020+ Silverado and Sierra 2500/3500 dual rear wheel hubs. It offers reliable engagement, a hardened 1/2 in drive, and a protective finish, making it good value for technicians and committed DIY mechanics who need a dedicated tool for full-floating hub service.

Frequently Asked Questions

Will this socket fit older model GM trucks?
Possibly: customers reported it fitting a 2012 chassis cab, but compatibility depends on the axle nut O.D. being 2.97 in and matching the 9 pin pattern.

What drive tool do I need?
Use a standard 1/2 in drive breaker or torque tool; the socket is hardened to withstand workshop torque levels.

Is this socket coated to resist rust?
Yes, it has a black oxide finish that helps resist corrosion in shop environments.