I Have an 84 that the previous owner put a custom front bumper on. It did not come with blinkers and I am having trouble finding the right ones. It appears that there are two sizes of blinkers, ones that are more rectangular with two mounting holes on plastic bumper cars, and ones that are more square with four mounting holes for diving board cars. I think they made the opening in my bumper for the later model blinker. Could someone measure the size of their later model blinker so I can verify if it will fit my car?