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rear end gear??

This is a discussion on rear end gear?? within the Firebird / WS6 forums, part of the Vehicle Specific category; I have a 99 automatic ta. What gear do i have in the rear end. I have suspicion to believe ...

  1. #1
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    rear end gear??

    I have a 99 automatic ta. What gear do i have in the rear end. I have suspicion to believe that it is a fairly low gear.. Any ideas ???

  2. #2
    That guy thearborbarber's Avatar
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    2.73 or 3.23

    Check for the RPO code on the driver door. GU2 = 2.73 and GU5 for 3.23

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    79 T/A -91 Firebird
    1998 Trans Am -Oynx Black

    Quote Originally Posted by thearborbarber View Post
    2.73 or 3.23

    Check for the RPO code on the driver door. GU2 = 2.73 and GU5 for 3.23

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    sounds good ill take a look thanks! on an automatic if i am to put a higher gear in isnt there alot of tuning to do to get my car to shift properly?

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    79 T/A -91 Firebird
    1998 Trans Am -Oynx Black

    Quote Originally Posted by alex1989 View Post
    sounds good ill take a look thanks! on an automatic if i am to put a higher gear in isnt there alot of tuning to do to get my car to shift properly?
    Nope. Leave it in D and it will do the work for you. That what the computer is there for.

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    sweet sounds good!! do you feel that this is a must to go up with a gear? is the 273 junk? I have a intake exhaust and about to have a tune...

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    79 T/A -91 Firebird
    1998 Trans Am -Oynx Black

    Quote Originally Posted by alex1989 View Post
    sweet sounds good!! do you feel that this is a must to go up with a gear? is the 273 junk? I have a intake exhaust and about to have a tune...
    Isnt junk but it will definately slow you down... Go 3.73 if your going to upgrade. DO IT BEFORE THE TUNE!

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