hello there ,, i wanna know the rear gear ratio .. i think its not a 3.2 ratio i run 75 mph at 2500 or 2600 rpm .. with a Vig Converter
so i would be happy if any one can help

 

Look on your drivers side door for the tag with all the RPO codes on it.
You'll either find GU2 or GU5.

GU2 = 2.73 gears
GU5 = 3.23 gears

 

what if the factory gears changed?
i think its not a factory

 

Set your emergency brake. block the front tires so the car doesn't roll. Put the gear selector in nuetral. Jack both the back tires off the ground & then mark where your drive shaft is & rear tire. Then turn the tire exactly one revolution. You should see the drive shaft go exactly around as many times as what the gear ratio is. Example 3 full turns & 1/4 would be 3.23's. 4 turns & a tenth turn would be 4.10's. I hope I explained this well enough.
Fred

 

thanks alot dear .. but can u tell me about the 3.4's and the 3.7's turns?

 

Dear? If I read you right, 3.4=3.42's & 3.7=3.73's. What are you saying the drive shaft turns 3.4 one time & 3.7 the next time you try it?

 

i mean 3.42's and 3.73's gear ..u read me right