Speedo gear question

I have my 91 Mustang 5.0L 5 speed that I am gonna fix my speedo gear this summer. I have a 3.73 gear and I think there is a red one in there now if I remember correctly. I need to order a new one, but look at this chart on 50 resto. They don't show what gear for 90-93 5speed cars Do they think that 90-93 owners don't put in 3.73's?? Is the red one right? Because from 83-89 everything changes.

http://www.latemodelrestoration.com/buyersguide/speedo-gear.aspx

I agree, thanks. I think I just need to take my lazy butt out to the garage and pull out the one bolt that holds it in!! hehe....