hey everyone i just wanted to ask if anyone knew what size gears does a 1997 3.8 camaro have. because i wanted to upgrade mine what size do you think would go good for a street car but will make a good upgrade.

 

GU2 : AXLE REAR, 2.73 RATIO
GU4 : AXLE REAR, 3.08 RATIO (V6)
GU5 : AXLE REAR, 3.23 RATIO
GU6 : AXLE REAR, 3.42 RATIO

Check your RPO codes in the door jamb or glove box.

 

it says gu5 so what would be a good upgrade and what kinda improvment will i be able to see.

 

im pretty sure u have 2.73 gears..i got my own personaly mechanic and was asking him wat gears to put into the car cuz i got a 99 v6 fb and he said to be on the safe side but 3.42 gears in it which are from the ls1 manual trans ams.

 

GU5 for sure? Is it an A4? See if you have RPO G80.

 

These Are All The Codes On The Door Ah3 Ak5 Ar9 B35 B84 C60 Dl5 D35 Fe9 F41 Gu5 Ipb J41 K68 L36 Mm5 M49 Nf2 Nk3 N92 Qb3 Qea R7a R8t R9w Ste T82 Ub3 Um6 Uq0 V73vk3 Vm3 1ay 1sa 1sz 10q 10u 6gm 7gm 8tb 9tb 92i

 

If the car is an RS(sport appearance package in later years) it got the upgraded 3.23 gears. My 00 V6 just has the 3.08's with an open diff. If I run across a 3.42 from a M6 for a good price I want to swap that in.

 

no its just a base model not a rs.

 

so what do yall recommend for an upgrade.

 

so does anyone have any advice on what i should upgrade to.

 

they told me to put 3.73's what do you think

 

3.73's are kinda big compared to the stock 3.08's. Ill bet your mileage and cruising rpm's will go into the toilet, but you'll feel a big difference.


I thought about changing the ratio on my car when I blew the rear end, but I liked my 30mpg and 1900rpm at 70mph.

 

well the told me to look at me rpo code on the door to see what i had and it gu5 so arent they 3.23

 

anyone.

 

v6 cars dont come with 2.73's from factory



He has stock 3.23's



yes, this is one of the most common gears in our v6's



You can install 3.42's from a factory F body and just do a whole rear end swap or you can install 3.73's. I would reccommend havingh someone install those for you as they have to be set with in a couple thousands of an inch. Your lucky because you have a 97 and the gears will be tunable in your computer.