I have a 2002 trans am. It has 2.73 gears in it. Should I change them or not? If I did change them I would only want to go to a 3.23
Would there be any benefit from changing them? If so, what kind of performance gains have you guys seen from doing so? Thanks
i wouldn't go to 3.23 (45 dead spot) because you will end up changing it to 3.73 anyway. go big the first time 3.73 (no dead spots) and you will see a huge difference.
i got 3.23 in my z28 and i m dieing to go to 3.73
__________________ 95 Trans am M6 I bet my car is Cleaner
99 Z28 A4 DD CAR DOMAIN
Do you drag race it? Do you drive it a lot? Is gas mileage and/or starting line breakage a concern?
Read my thread about my experience with ditching my 2.73 gears in this forum, it might help you make a decision.
__________________ 2002 Camaro Z28 1SC
A4, 3.42 gears, stock converter
MTI lid, Pacesetter longtubes, ORY, cutout, BMR torque arm and LCAs with relo brackets, Nitto drag radials
12.76 @ 109.76, 1.92 60 ft
I went from 2.73 to 3.42 and have never looked back!
__________________ 2002 NAYY BLUE METALLIC CAMARO Z28 HARDTOP
Livernois ls6 stage 2 heads Comp cam .581 .588 camshaft Vig 3600 3.42 gears Magnamouth Whisper lid
Kooks Long tube headers with cats Bmr adjustable torque arm
11.90 1/4 115.72 mph 4/10/09 nitto 555r drag radials
1.7889 60 ft "RIP DEAR MAMA" YOU WILL NEVER BE FORGOTTEN 7/16/39 - 4/11/09
"Imitation is the greatest form of flattery"
I went from 2.73 to 3.73, only dropped my track times about .15, but has made the car much more enjoyable to drive on the street. Lost about 2 mpg from the swap, driving mostly highway.
__________________ 99 BGM Z28 A4 w/ 3.73 gears and some bolt-ons
if you change them and only go to a 3.23 save ur money and time and dont do it...thats just dumb.....i went from 2.73 to 3.73 and still get 18mpgs drivin like an ass, and soon im goin to 3.90s, but i wood never go below 3.73
__________________ 98 z28 A4...13.436 @105.28 with 3.73's only, trans not shifting, and tires spinning
free mods,!EGR, !AIR, !A/C, !sway bar, lid, 3.73's, pacesetter lt's, 3" tsp orx, dumped dynomax bullets, bbk ssi intake, 88mm tb, msd 8.5mm wires, ngktr55....360rwhp/362rwtq
i have 2.73's reight now while the car is my dd work car. plans are to replace entire drive train at 200K miles. at that point, if the rear hold together i'll swap for some 3.90's.
__________________ 2000 Camaro Z28NBM, A4, 2.73's, Coated Pacesetter LT's, TSP Rumbler-X TD, Dynomax, Lid, Drop-in K&N, descreend MAF... 170,xxx miles!!
2004 Silverado 2500HD, True Dual Flowmaster original 40's, Sport King AT 285/75/16's, Diablo Tuned.
__________________ 1994 Z-28 switching to a 427 LS7X full Global West suspension 10pt cage Visage body kit, SS hood, commander spoiler,with custom house of Kolors paint.
1995 z-28 383 lt4 hot cam ARP main studs,JE Forged pistons, H-Beam rods,Eagle crank, ported to match heads and intake. 58mTB 36lb injectors,Long tube headers, Custome tune.K&N CAI MSD Blaster coil, Msd optispark, Msd wires Lightly built trans, Monster 2,300-2,500 stall,150 wet Nos http://www.carfreaksvideos.com/Videos.html
Last edited by CARFREAKS; 11-15-2009 at 11:55 PM..
I don't know how big of difference it is between the vette and Z28 but this chart is right on with my car with RPMs. I have 3:42 out of a Z06 in my Vette and I like it a lot I have been told the 2:73 that came in my car were very sluggish mine was changed before I got it.
__________________ 1994 Z-28 switching to a 427 LS7X full Global West suspension 10pt cage Visage body kit, SS hood, commander spoiler,with custom house of Kolors paint.
1995 z-28 383 lt4 hot cam ARP main studs,JE Forged pistons, H-Beam rods,Eagle crank, ported to match heads and intake. 58mTB 36lb injectors,Long tube headers, Custome tune.K&N CAI MSD Blaster coil, Msd optispark, Msd wires Lightly built trans, Monster 2,300-2,500 stall,150 wet Nos http://www.carfreaksvideos.com/Videos.html
2.73 gears 
, Coated Pacesetter LT's, TSP Rumbler-X TD, Dynomax, Lid, Drop-in K&N, descreend MAF...
