Gear ratio from build sheet

[tdwnilla1]

Hey everyone,

I have a 1973 Plymouth Cuda that I am trying to determine my gear ratio without removing the rear end. I believe the car has never had anything changed in it as it is a numbers matching car and I have the build sheet but it just has a damn 014 code under the Axle column. Can anyone help me out or point me in the right direction on this ? Thanks in advance !!

Todd

[1 Wild R/T]

014 = 71-73 E body 8.75 3.23 ratio open (non-S/G) 489 case with 7290 U joint & 10" drum brakes...

[anlauto]

Yup and D53 is 8 3/4 3:23 

[tdwnilla1]

Thank you so much for your help, I really appreciate it!!

[jimynick]

A quick and dirty way to determine rear end ratio is to jack up the rear, put a chalk mark on a spot of the universal joint as well as the tire and give the tire one complete turn while counting the driveshaft revolutions or portions thereof.