what is my gear ratio

Post a pic of the build sheet, I'll decide the axle code and Suregrip code as well as the tire code! If there is any character under the Suregrip box, it came equipped with one! The axle code will determine what ratio the car came with, but as mentioned that could've been changed out!

D51 in 69 denotes a 2:76 in a 7 1/4" rear!
T62 in 69 denotes a D70x14" tire