[1930artdeco]

Looks like a 28-29 to me. I am at work so cannot measure the one on my car. No big deal to replace, make sure you have a flat clean surface and torque evenly as the ears can crack. I used a piece of grocery bag for a gasket if I remember correctly. It will work as is, I was just pointing it out so that when you get a chance if you want you can replace that is all.

Mike