Having trouble figuring rear gear ratio

[AmadeusCharger500]

I raise the rear end, turn the pinion and count the turns versus one rotaion of the wheel?
I am confused because I am getting about 1.75 turns/1 wheek turn. I have never heard of such a ratio. I can only think I am doing something wrong.

Its an 8 1/4 open rear.

[OttawaCharger]

with an open rear ratio, because one tire isn't turning, you can figure your gear ratio by rotating the airborne tire TWO full rotations and counting the number of times the pinion rotates

I'm guessing that you have a 3.55 or 3.21

[mikepmcs]

i agree.   3.55's

[Chryco Psycho]

assuming 1 whell is not turning at all

[punisher054]

Should be able to open up the diff, believe that the gears will be stamped with the ratio. My first Charger had some ridiculous freeway flyers, something like 2.40:1 or something like that the years make it a little fuzzy. A