What is the 2017 chevy 2500hd bolt pattern?

The 2017 Chevy 2500hd bolt pattern iS6x139.7 and is also called 6 on 5.5. A bolt pattern is just the diameter of an imaginary circle formed with the wheel lugs centers. The pattern is determined by the model of the car. To find out Your bolt pattern, measure from the middle of one stud to the middle of the opposite stud. In other words, skipping two studs. After that, the number You have is the actual bolt pattern. For example, if You see A4.5 inches then You have A5 on A4.5 or 5X4.5. Custom wheels might have a different pattern. However make sure that an expert does this change, because the pattern determines the diameter of the wheel.