I'm looking at the window sticker on my truck and I can't find what axle ratio it has. All that is listed on the window sticker is 11.50 Rear Axle. I crawled underneath and did not see a tag on either diff cover. Where I can find it?

At 65 MPH I'm at 1800 RPM so I I'm guessing the 3.73's, sound right?

Thanks.

 

4.10's are a listed option ($50, I think). If it's not listed, you've got 3.73's. Your overdrive is approx 0.7:1 ratio, so you can do the math.

 

1800rpm at 65mph with an auto sounds right for 3:73's

 

yep im like 2100.with 4.10

 

your axle ratio should be listed in the glove box. Your front and back will be the same.

There was a guy on here a bit ago that told how you can jack your vehicle up...mark the tire when its staight down and then count the revolutions of the drive line. stop counting when your tire is straight down again.

Check your glove box first.

 

when I bought my truck it had the off road package which is supposed to have fog lights, tranny skid plate and 4.10 gears but my glove box says 3.73s found my window sticker it says 4.10s need to jack it up to count the revs i guess