Rear Axle Ratio, Where Do you Find?

[Dj Friction]

Hey Ya'll....

I wanted to find the actual rear axle ratio for my 95 3/4 4x4 Suburban.

I thought that it would be stamped on the pumpkin housing????

But I can't find it???

The door sticker is very faded and can't make out any wordings.

Thanks for the help in advance!!!!!!

[MrShorty]

Find your RPO code list (a list of 3 digit codes). On trucks, I think it is usually in the glove box (is on my '98 Suburuban). Somewhere in that list will be a code that indicates the gear ratio installed at the factory.

Alternatively, you could measure gear ratio by lifting the tires and counting the number of revolutions of the driveshaft for a given number of revolutions of the tire.

[Dj Friction]

Shorty......

Yes they are in the glove box......How do I find the rpo codes to know what they mean????

Thanks

[Dj Friction]

Actually I found them......are they Year Specific...or are they GM codes....

It has a G80 Posi Limited slip

GT5 4:10 rear ratio.......

That's cool......I didn't know that it was posi????

Thanks

[MrShorty]

Being a 3/4 ton, does it have the 14 bolt rear end (I don't think that's in the RPO codes)? If it's a 14 bolt rear (with a G80 "gov-lock" and 4.10 gear ratio), I'd say that's a pretty good combination.

[Dj Friction]

Shorty....
Yes in fact it is a 14 bolt.......Sweet combo I would say......Didn't know that when I bought it. It was a state forest truck from ID.

You know the state stuff ...they spare any money!!!!


Thanks for the help....