On my 1997 it had 2.73's and it didn't show it because of something to do with the noise level or something but i was wondering if that was the same with the LS1's or not. Also if not then how do you tell the difference without pulling the cover off to see what gears you have?

 

Look on the option code list(most are inside drivers door but some are in the glovebox)
GU2=2.73
GU5=3.23 or w/6speed 3.42

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98 Z28 A4 2.73 aluim. driveshaft
Free mods SLPlid & bellows
BMR LCA & SFC

 

I have 2.73's (GU2 code) in my 99 Z28 and I have a "1" selection in my gear shift. I think what you're talking about changed in 98 when the F-Bodies got the LS1.

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Mark
99 Hugger Orange Z-28 A4 w/Y3F Sport Appearance Package

PAY NO ATTENTION TO THE USERNAME!

 

Thanks for your help guys!

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1997 30th Anniversary Edition Z28, 3.73 gears, BBK chrome headers, hooker cat back, hypertech powerstat,K&N, moroso solid motor mounts, competition engineering polyurethane tranny mount, first gear mod, O2 simms and no cats, LT4 knock sensor, Bfg 245/50r16 all they way around Dr's on the back, Eagle Alloy 16X8's, Transmission concepts 4l60e tranny, full manual kit, vig 2800 stall, Zex 100 H.P. Nos set up, ngk tr6 plugs, poly torque arm mount, lakewood trailing arms, March underdrive crank pully, Throttle body bypass, SS ram air hood, 98-01 wings west SS style spoiler, Wings west ground effects, Permacool tranny cooler.