I have a 2002 2wd Screw XLT 4.6, and I wanted to know what the stock gearing is?? From stock alone it lagged quite a bit.. Now I got a set of 22's, and it really lags power. I was looking to get a set of 4:10's but I don't want to be my RPM's to be screaming at 80 MPH cruising.. or for that matter 90-100 on my way to and from Vegas.. I think I will be ok considering my new tires are a hair under 32" tall. If anyone can give me some advise, I would greatly appreiciate it.
Thanks in advance..

 

http://www.differentials.com/calc.html That will tell you what your RPMs will be with different tires and gear ratios.