How do I tell the axle ratio?

[goat364]

I'm still on the hunt for my perfect '00-'06 Tahoe/Yukon. I want to find a truck with 4:10 gears but I'm not sure if there's something printed on the truck somewhere that tells the ratio. I know there's a better chance finding them with the tow package, and that if the original window sticker is present it will tell me too. Any tips?

Thanks,
Erik

 

[992door]

look in the glove box at the RPO codes
GT4 -- AXLE REAR, 3.73 RATIO
GT5 -- AXLE REAR, 4.10 RATIO
GU4 -- AXLE REAR, 3.08 RATIO
GU5 -- AXLE REAR, 3.23 RATIO
GU6 -- AXLE REAR, 3.42 RATIO
G80 -- AXLE REAR, LIMITED SLIP (POSITRACTION)

HC4 -- AXLE REAR, 4.56 RATIO

 

[goat364]

Thanks 992door!

 

[992door]

no problem