Write the VIN# down and call a Chevy dealer and ask for PARTS. Tell the parts man that you have the VIN# and you would like to know the gear ratio. He will give you the info. you are asking about.
it has an 8.8 rear end with a 3.23 ratio.
3.08
i believe it would be 3.11
need the code off rear or find RPO code inside glove compartment
2.833 is the rear-end gear ratio
The rear end gear ratio on a 1980 Oldsmobile is 3.73, in the overdrive gear. The low gear ratio is 1.43.
The stock rear-end gear ratio for all US 240sx is 4.083
The rear track of the 2003 GMC Sierra-2500HD is 5 ft. 6 in. (66 in.).
The rear track of the 2003 GMC Sierra-1500 is 5 ft. 6 in. (66 in.).
You'd have to look at the RPO code in the glove compartment to determine this, as there were a couple different options. The gear ratio for the front and rear axle will match.
If the front is 3.55, then the rear needs to be 3.55
You have to know three things, the transmission type, the transfer case type, The rear axle gear ratio. Also in some cases, the underdrive. Enter the information in the site linked below and you will get your answers.