I know I'm doing something stupid I just need some direction. I jacked my Jeep up and had a buddy watch one wheel while I'll spun the driveshaft in order to figure out if my jeep had been regeared yet. On both axles with multiple attempts I only got through 2 revolutions to spin the tire 1 complete revolution. From the methods I've read that would mean I have a 2:1 gear ratio which couldn't be right. I have a 98 with the 4.0 Auto, running 33s. Any help is greatly appreciated!

 

And I found my answer, with an open diff the spider gears multiply the ratio by 2 when you block one wheel