What's My Axle Ratio?

[JRMaroon]

I have a '94 Automatic and am curious what my axle ratio is. In O.D. at 60 it's turning about 1400 RPM and at 80 it's about 1900 RPM.

 

[tntcorvette]

my money goes on a 2.59 hear. You can look where the option codes are (mabey center console lid or rear storage bin lid's) and look for code G92. If G92 is not there, then its definetly a 2.59 but based on your cruising rpm & speed its a 2.59 gear.

 

[Rabbit]

RPO for 2.59 is GM1.

 

[WEFs02]

1400 @ 60 does sound like 2:59

 

[jenavet]

why dont you just get a little dirty,jack the car up and look on the bottom of the pumpkin.should be printed right on there.you might have to dust her off a bit but why guess when the info should be easy to verify with a jack and a rag
jen

 

[vader86]

2.59

 

[Redbob]

Or you could take it out of gear, block the wheels, and jack one rear wheel off the ground; assuming you don't have a locker.
Spin the wheel exactly two complete revolutions, and count the number of times the driveshaft turns.
It helps to make chalk marks on the tire and on the driveshaft first.
Driveshaft turns about 2.5 times, you got a 2.59:1 rear.
3 times? You got the "performance" 3.09:1 axle (not likely, considering the RPM's you mentioned).