Sunluway 24mm Crank Bolt Impact Socket for GM LS Engines — Deep 6-Point Counter-Weighted, 1/2" Drive

Designed for mechanics and DIYers who work on GM LS-series V8s, this counter-weighted, 6-point impact socket delivers greater momentum and bite compared with standard sockets. It fits 24 mm hex pulley damper bolts and accepts a 1/2" drive impact wrench, combining durable GB 40Cr alloy steel construction with a geometry built to resist slippage and handle high torque impact use.

How does this socket make removing stubborn crank bolts easier?

The 77070 multiplies delivered momentum so an impact wrench can break loose seized or high-torque crank bolts more reliably. Its deep, counter-weighted body centers the force and prevents the socket from lifting out of the bolt head under impact.

• 3x momentum gearing (vs standard impact sockets) for stronger impulse force
• Deep design reaches recessed crank bolt heads on LS engines
• 6-point contact reduces rounding and slippage during removal
• Optimized for use with 1/2" drive impact tools

Will this fit my GM LS engine and other 24 mm applications?

The socket is specified for 24 mm hex harmonic balancer/crank bolts used across many GM LS platforms. Its 6-point profile and depth make it suitable for any application requiring a robust 24 mm impact socket, not only crank pulleys.

• Specifically sized for 24 mm hex pulley damper bolts
• Compatible with LS-series V8 crank bolt removal and installation
• Also works on other 24 mm fasteners that need impact-rated tools
• Designed for 1/2" drive tool interfaces

Is this socket strong enough for repeated impact use?

Constructed from heat-treated GB 40Cr alloy steel, the 77070 is built to resist deformation and fatigue under high-torque impact conditions. The heat treatment process increases hardness so the socket maintains shape and drive engagement through repeated jobs.

• GB 40Cr alloy steel for higher tensile strength and durability
• Heat-treated finish to resist cracking and wear
• Impact-rated design tolerates wrench impulses without breaking
• Corrosion-resistant surface for longer service life

How do I use the Sunluway 24mm crank bolt socket safely and effectively?

Attach the socket to a 1/2" drive impact wrench and ensure it fully seats on the 24 mm bolt head before applying power. Because the socket’s counter-weighted profile stabilizes the tool, you typically don’t need to lock the crankshaft when removing the bolt, but follow vehicle-specific service procedures and torque specs during reinstallation.

• Use with a quality 1/2" drive impact wrench for best results
• Verify full seating on the bolt to avoid rounding
• When reinstalling, follow manufacturer torque specifications
• Wear eye protection and appropriate PPE during impact use

Who is this tool for? The Sunluway 77070 24mm crank bolt socket is intended for professional mechanics, automotive enthusiasts, and home garages tackling GM LS engine maintenance or other high-torque 24 mm fastener jobs. If you need a dependable, impact-rated socket that resists slippage and stands up to repeated heavy use, this tool is designed to improve success and reduce damage to bolt heads during crank pulley removal and installation.