GM ac flare nut sizes

[AmericanGoomba]

Are the flare nut sizes on the ac hoses found on GM vehicles the same?

 

[65ranchero]

Not knowing for sure I would think there are several different sizes.
Dependent on the hose size.

 

[Jim greengo]

I've always used a big crescent wrench on them.

 

[chris142]

I have not seen a flare on a car in decades.

 

[joe_padavano]

The coupling nuts (they are O-ring seal, not flare nuts) are a variety of sizes, both threads and hex size.