johntruck Clutch Head Bit Socket Set 3/8" Drive 4-Pack (5/32"–5/16") Chrome-Vanadium for Older Chevy/GM

johntruck 4 Pack Clutch Head Bit Sockets are a four-size 3/8" square-drive kit engineered to removе and install 8-shaped clutch-head screws commonly found on older GM cars and trucks.

This compact set bundles four clutch-head bit sockets (5/32", 3/16", 1/4", 5/16") made from chrome-vanadium steel and finished for corrosion resistance. Each socket is recessed with a four-corner interface so it mates securely to clutch-head fasteners and to any standard 3/8" square-drive ratchet or extension. The kit targets classic Chevrolet and other GM vehicles as well as non-automotive gear that uses the distinctive 8-shaped screw pattern.

Will this set fit my older Chevy or GM truck?

These clutch bit sockets are sized for the common clutch-head screw sizes used on many older GM vehicles. If your fastener has the 8-shaped (clutch-head) profile, one of the four sizes will typically match. Verify screw diameter against the included sizes before use.

• Includes 5/32", 3/16", 1/4", and 5/16" clutch head sockets.
• Designed to work with a 3/8" square-drive ratchet or extension.
• Fits many Chevrolet, GMC and other older GM applications.
• Also compatible with non-automotive clutch-head fasteners.

How strong and durable are these sockets?

Manufactured from chrome-vanadium steel and heat treated, the sockets are built to resist wear and handle the torque typically required for clutch-head screws. The outer finish and polishing help slow oxidation and surface wear in workshop environments.

• Chrome-vanadium construction for increased strength.
• Heat treatment improves durability under load.
• Polished/painted surface reduces rust and improves lifespan.
• Recessed four-corner interface for secure engagement and reduced cam-out.

How do I use these with my existing tools?

Each clutch bit socket accepts a 3/8" square-drive, so they plug directly into standard ratchets, breaker bars, or extension adapters. Choose the socket that fits the clutch-head screw snugly, apply steady torque, and avoid rocking or angled force that can deform the bit or fastener.

• Works with standard 3/8" drive ratchets and extensions.
• Select correct bit size for a snug fit to prevent slippage.
• Use steady, aligned torque; avoid excessive impact on worn screws.
• Keep sockets clean to maintain fit and reduce fastener damage.

What’s included and what support does johntruck provide?

The kit ships with four clutch head bit sockets and a product manual that lists sizes and usage tips. johntruck backs the set with a 30-day return window and a 12-month warranty, plus customer support if you encounter fit or quality issues.

• Four sockets: 5/32", 3/16", 1/4", 5/16".
• Product manual with sizing and basic usage guidance.
• 30 days returns and 12 months warranty from johntruck.
• Customer support available for fitment or defect questions.

Who is this for? This 4-pack is aimed at DIY mechanics, restoration enthusiasts, and professional techs working on classic Chevrolet and GM vehicles or any equipment that uses clutch-head (8-shaped) fasteners. If you restore older trucks, service legacy headlights or horn rings, or maintain machinery with clutch-head screws, this compact set gives you the common sizes and a durable 3/8" drive interface to get the job done.