What size socket is a 2007 Chevy Impala lug nut?
The standard lug-nut socket size for a 2007 Chevrolet Impala is 13/16 inch (20.6 mm). This size fits most factory wheels with a 60-degree conical seat; aftermarket wheels or certain lug-nut configurations can require a different size, so verify before you loosen anything.
In this article, we break down the typical sizing, explain why sizes can vary, and guide you through verifying the correct socket for a safe and proper wheel change on a 2007 Impala.
Standard sizing for the 2007 Impala
For most 2007 Impalas equipped with factory wheels, the hex size you need to loosen or tighten lug nuts is 13/16 inch (20.6 mm). The lug nuts on these vehicles commonly use a 60-degree conical seat, which is standard on GM passenger cars from that era. The bolt pattern for context is 5x115 mm, but the socket size is determined by the lug-nut hex, not the bolt pattern.
Seat type and wheel compatibility
Lug nuts come in different seat shapes—conical (60-degree), ball, or flat. The 13/16 inch size typically pairs with a conical-seat lug nut found on many GM models of the mid-2000s. If your wheels are aftermarket or employ a non-standard lug nut, the socket size may differ and you should refer to the wheel documentation or consult a professional.
How to verify the correct size
To ensure you’re using the right tool, follow these verification steps before attempting to remove a wheel:
- Inspect the lug nuts for size markings or indicators of hex size or seat type.
- Measure the distance across the flats of a lug nut with calipers or a ruler to identify the size in inches or millimeters.
- If a 13/16 inch socket fits snugly and seats properly on the lug nut, that is the correct size for most factory wheels. If it doesn’t fit or feels loose, you may be dealing with aftermarket hardware and should try a different size or consult documentation.
- When in doubt, consult the owner's manual, the wheel manufacturer, or a qualified technician.
Conclusion: The typical socket size for a 2007 Impala’s lug nuts is 13/16 inch (20.6 mm), but variations exist with aftermarket wheels or different lug-nut seat types. Always verify the exact size to prevent damage to the lug nuts or studs.
Final summary
In summary, use a 13/16 inch socket for most 2007 Chevrolet Impala lug nuts. Confirm with the wheel documentation or by measuring the lug nut if you’re dealing with aftermarket wheels or unusual hardware to ensure a safe and proper wheel change.
