These are 5x4 3/4 bolt pattern. 4.5" backspace. These were made by mcwheels- factory centers with an aftermarket rim shell. The chrome on the rim shells is starting to show its age. See pictures. These are driver quality. 200 for the pair, center caps not included.
John, I also have the tach that is pictured are you saying you have a Buick tach ya wanna swap. If so show me a picture and what it is from. Al T.