redbadss

iTrader: (4)

i don't know if my car has the 3.23 gears that most auto's got, or if it's the 2.73s that some got. is there any way to tell the difference?

scidav87

iTrader: (16)

look at the part codes on the driver door of your car. I don't remember which one is which GU9...etc do a search on here, you WILL find it. Also there would be a large RPM difference on the highway. What rpms are you doing on the highway???

ICRAZY6

iTrader: (68)

It's in the sticky's

*98TransAm*

If you have a stock vehicle, look for the RPO codes on the door or in the glove box. GU2 = 2.73, GU5 = 3.23 and GU6 = 3.42.

redbadss

iTrader: (4)

thanks man, i looked on the door and it was GU5. i thought it was the 3.23 because the way it feels and the rpm but wasn't sure.

TORCHD 02 TA

iTrader: (39)

well to give you an idea. In my M6 car, at 60 i am turning EXACTLY 1500 RPMS. i have a stock 3.42

scidav87

iTrader: (16)

With 4.10's and a M6 at 80mph mines at 2100 rpm

LS1nut377

iTrader: (16)

mine is at 70mph in OD at about 2000ish rpm whats that?

bayer-z28

iTrader: (14)

4th gear doing 60 or 100 (forgot which one it is) look at your tach, that'll give you an idea of your rear gear ratio. Your tach will read about the same as your rear.. Minus a couple percents tho.