Rear axle ratio

[Sepiroth]

I am sorry if this is not the right forum for this.

I just purchased a 2002 Suburban and I am curious to find out what the rear axle ratio is.

Where on or in the truck can I look to help me out.

Also if there are RPO codes, what code goes to what rear end?

Thanks in advance.

 

[Yuke2K]

Look in the bottom of the glovebox, there should be a sticker with upwards of 40 or so RPO codes on it. I don't know which code means what though, unfortunately...all I know is that my truck has 3.73s based on what I decoded. There was a website with an RPO decoder on it, but the name escapes me.

 

[nephite1978]

There was a website with an RPO decoder on it, but the name escapes me.

Yuke, I believe the link you're talking about is:
http://www.gm-trucks.com/home/RPO-Code-Lookup.html

 

[05Yukon]

Gu6= 3.42 GT4= 3.73 GT5= 4.10 on the glovebox sticker.

 

[Yuke2K]

Yuke, I believe the link you're talking about is:
http://www.gm-trucks.com/home/RPO-Code-Lookup.html

Yep, thats the one. Thanks man.