Can somebody give me a hand with a few measurements since I drive an HHR and not a Cobalt. I'm looking for a solution to not having an armrest, and do not want the factory armrests that are available for the HHR. I need a few measurements. From point 1 to 2 in this picture
And between 3 and 4 here.

 

Nobody can help? I only need 2 simple measurements from the center of the holes in the pictures.