The 2005 GMC Envoy XL uses a 6-lug bolt pattern on a 139.7 mm (5.5-inch) bolt circle.
Bolt pattern basics for the Envoy XL
The Envoy XL is part of GM’s GMT360 platform, and most vehicles from that family (such as the TrailBlazer, Envoy, Buick Rainier) share the same wheel hub design. The standard mounting arrangement is six lug nuts arranged on a circle with a diameter of 139.7 mm (6×139.7 mm, or 6×5.5 inches). This pattern is common across GMT360 SUVs from that era.
Fit and compatibility considerations
When shopping for wheels, confirm factors beyond the bolt pattern: hub bore size and wheel offset. The exact hub bore can vary by production run and trim, so verify the specification for your vehicle and the wheels you plan to use to ensure proper seating and clearance. Also check the wheel offset/backspacing to avoid interference with the fenders or suspension components.
Summary
The bolt pattern on a 2005 GMC Envoy XL is 6x139.7 mm (6 on 5.5 inches). Always verify hub bore compatibility and offset with your chosen wheels, and consult a professional if you’re unsure.