I'm not sure the bolt pattern is the same. I think your 2008 has the same 6x120 that my 2022 does....but I think they went to the same pattern as the Silverados and Sierras for 2023.

 

The 2008 colorados have a bolt pattern of 6 on 5.5 inches, which is 6 on 139.7mm. The 2023 colorados have that same pattern. The trucks from 2015-2022 have that 6 on 120mm pattern. It's kinda nice GM switched back to the 6 on 139.7mm, because that's the same pattern as the half ton silverados.

 

Thanks Flea,

For some reason, I thought the Twins have always been the "red headed child" when it came to the bolt pattern.

 

Question, so putting on factory 16x7 aluminum wheels, replacing the stamped steel ones on my 2015 WT, would the correct lug nut size be M14 x 1.5?

 

The 2015 Chevy Colorado uses M14x1.5mm (or 14mm x 1.5mm) thread size with a 22mm (or 7/8-inch) hex size for its lug nuts. These lug nuts typically have a 60-degree conical (cone) seat. FROM Google

 

Correct, my Google search indicated both sizes of the lug nuts on a 2015 Colorado pickup truck could be M12x1.5mm OR M14x1.5mm.

Just looking for clarification. Thank you.