gearing - stickers?

[solowookie]

where can I find the gear ratio on a truck (the factory information?)

I have the following 2 stickers on the door, but I don't see anything that would be relating to gear ratio.

 

[MTBLAZER89]

Look for a sticker in the glove box, or pop the cover on the axle.

 

[sweetk30]

also on inner fender there is a big rpo code list with info on some years.