2.8 rear gear ratio?

I was checking out the gear raitio on a 1961 parts doner jeep & came up with a 2.8 gear raitio...does this sound right?
I clamped one of the wheels & went to the other side & rotated it 1 rev while watching the drive yoak.
This seems way to high of a raitio...dosn't it?

 

Re: 2.8 rear gear raitio?

From the Tech Library:

http://www.earlycj5.com/technical/axles/

You need to make 2 revolutions.

 

WOW!
Thanks for your help.
Not to question...but only to learn:
On a camaro I had I had checked it with 1 revolution.
We always called the gears 4.11 to 1 rev.....or 3.73 to 1.
Thats why I just went 1 rev.
Are the jeeps differnt from the average street car?
Does it have to do with the transfer case or something?
Thanks...Tom

 

Tom,

If it's an open differential, and one wheel is on the ground, you rotate the wheel two revolutions.

There's a good explanation here:

http://www.jedi.com/obiwan/jeep/misc/gearratio.html

 

Yes. Both wheels have to turn a complete revolution. Easy when you have posi or a locker - rotate one wheel and the other rotates too.

Or equivalently, one wheel turns twice.

 

I get it...I had a posi in the camaro.
Thanks guys...Tom