Hi I am new hear and need some info on my dad's old Mustang which we are going to start rebuilding I believe it has a 289 block. It has a 4 speed box. Can someone give me the 4 gear ratios of the box. Also I think the rear end ratio is 3.25 Is this correct. You can post a reply or better just e-mail me at tongascrew@msn.com thanks much tongascrew