Chrisd000111

I have a 1994 Trans Am GT A4. i read at a bunch of different places saying they are 373 and some say something different
Thanks

RamAir95TA

iTrader: (2)

Look at the RPO codes in the glovebox/door jam.

GU2 2.73
GU4 3.08 (some V6 cars, no V8s)
GU5 3.23
GU6 3.42

No car came standard with 3.73 gears.

Elliott's94Z

iTrader: (12)

^^ Yup...Either gonna be 2.73 or 3.23

Chrisd000111

oh ok i have to check that tomorrow then im guessing its gonna be 3.23 then

Elliott's94Z

iTrader: (12)

Let's hope

Formula350

iTrader: (3)

OP could've narrowed it down by saying what trans he had lol Hindsight :\

Manual = 3.42s
Auto = 2.73s or 3.23s. Pretty sure Z Rated tire cars got 3.23s, in which case if he has a 150mph speed he's got 3.23s.

myltwon

iTrader: (1)

Trans Am GT autos came standard with 3.23s

Formula350

iTrader: (3)

I ask honestly, did they actually put 2.73s in Tran Ams?! Seems a bit of an oxymoron; Performance car with Economy Gears :\

Chrisd000111

i do have a 150mph speedo my sisters z also has the 150 speedo so that means it has 323s

1996firebirdformula

iTrader: (3)

Just because its 150 mph speedo don't mean its 3.23s can be 2.73s also.
Some Trans Ams have the 2.73s in Ls1s & LT1s.


Look in Glovebox or on the driver door for the RPO Code
GU2 for 2.73
GU5 for 3.23

Or Look at the RPMs driving.
http://www.f-body.org/gears/

2.73s 60 mph is 1500 rpm
3.23s 61 mph is 1800 rpm

buckner01

ive heard that if your shifter goes into 1st its 3.23s if the shifter only goes down to 2nd its 2.73

IronOutlaw

iTrader: (4)

Thats just a year model difference.

My 94 had 273s with a 150 speedo so throw that out the window as stated earlier.

I went from 273s to 323s and there was a big difference. 273s suck.

Chrisd000111

well when i do about 60 -65 my rpms are at about 2000 rpms

Formula350

iTrader: (3)

We gave you the RPO codes, look on your door, or in your glove box (depending on year).

But since you know your RPMs and the tire size, put them in.
http://www.f-body.org/gears/

C5042081

iTrader: (5)

you could also pulll the diff. cover , count the teeth on the pinion gear

Formula350

iTrader: (3)

Or jack up the back end and count tire to drive shaft rotations. A bit less messy, time consuming and costly lol

IronOutlaw

iTrader: (4)

You should have 323s then.

myltwon

iTrader: (1)

like I said earlier if you have a 94 Trans Am GT auto you HAVE 3.23s

standard for the trim level

Chrisd000111

ok thanks the only reason i kept asking questions is because the guy that painted it took the stickers off the door and i didnt know that there was a sticker in my glove box that says all the parts and it does say GU5 which is 323s
thanks

slvrlt1er

Yeah i got those and i do have 2.73 gears on mine.