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09-26-2005, 10:50 AM
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#1
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Join Date: Feb 2005
Location: Cherry Hill
Posts: 388
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3.73's or 3.42's?
hey guys, thanks to a little bonus at work, I'll have my rear end done sooner rather than later! Ive already got an auburn posi and im buyin a girdle cover/gear/rebuild kit from thunder racing then aftermarket axles from somewhere. my rear end should be able to handle whatever ill ever be throwing at it. my car is a 93 LT1 automatic and i already have 3.23 gears. should i get 3.73's or 3.42's? i dont care about gas mileage, i have a daily 20 minute highway drive to work at 75 mph but 95% of the driving is around town, stop and go. id appreciate some opinions on what gears to go with, thanks!
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93 Formula: If it bolts on then I've got it, only some more expensive red tubes to add underneath and to go inside the engine and trans left.
09 G8 GT: Vararam OTR ram air, American Racing long tube headers with x-pipe, Vector 93 ECM/TCM tune, Magnaflow axle backs, MSD ignition coils, Spohn rear trailing and toe link arms, poly differential and subframe bushings, 20 inch aftermarket Camaro rims, brake upgrades.
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09-26-2005, 11:31 AM
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#2
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Guest
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4.11s 8)
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09-26-2005, 11:41 AM
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#3
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I will beat you with a toaster!
Join Date: Sep 2004
Posts: 6,054
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I have 3:73s and like them. I get about 20 MPG or so and thats a mix of city/highway driving and of course a few 0-60 wot passes. I dont think you will see that much of a difference going with 3.42s from 3.23s, but i know 3.23 to 3.73 i saw a difference. I recently just did the same thing with my rear end after i demolished the posi unit
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09-26-2005, 11:44 AM
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#4
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12 Second Club
Join Date: Aug 2004
Posts: 2,923
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go with 3.73s
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2016 Lamborghini Huracan LP610-4
2012 Lamborghini Gallardo LP560-4 Spyder
2013 Nissan GT-R Black Edition
1999 Trans Am WS6
2000 Trans Am WS6
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09-26-2005, 01:35 PM
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#5
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2007 Member of the Year
Join Date: Oct 2004
Location: Seabrook, TX
Posts: 14,281
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ummm 4.10s
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WF=DF
Kommandant of the ACL (Anti Canadian League)
Quote:
Originally Posted by LTb1ow
Junk the pos, spend the money on beer, acquire headache.
Same result cept this headache doesnt last months.
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09-26-2005, 03:15 PM
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#6
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Join Date: Oct 2004
Posts: 365
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3.42 to 3.73...your talking a nine percent increase in ratio which is really nothing. get whichever is cheaper
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AIM: blacktoprecs
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09-26-2005, 03:34 PM
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#7
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13 Second Club
Join Date: Jul 2004
Location: Ewing/Galloway, NJ
Posts: 3,904
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def. go for the 373's...youll get a much bigger kick in the ass with them compared to 342's which arent worth the hassle of changing from 323's, 273s to 342 would be a nice jump, but 323 to 342 isnt much at all
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EB
99 Riviera, Bone stock, 14.34 @ 96 "Walking 5.0's in luxury" RIP
95 Cherokee, Bone stock 16.2 @ 83 "Treeing your 3rd gen and beating it to the line despite trapping less....and looking better"
93 TA, Bone stock, 13.8 @ 100 "Beating ****** drivers in ****** LS1's"
https://www.facebook.com/groups/285090241699967/
R.I.P. Tia
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09-26-2005, 03:57 PM
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#8
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2007 Member of the Year
Join Date: Oct 2004
Location: Seabrook, TX
Posts: 14,281
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i have 3.42s... they are nice but I want more I think
__________________
WF=DF
Kommandant of the ACL (Anti Canadian League)
Quote:
Originally Posted by LTb1ow
Junk the pos, spend the money on beer, acquire headache.
Same result cept this headache doesnt last months.
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09-26-2005, 04:30 PM
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#9
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Join Date: Oct 2004
Posts: 365
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next step up for you would be 4.10 373s you wont see much if any difference
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AIM: blacktoprecs
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09-26-2005, 04:35 PM
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#10
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12 Second Club
Join Date: Aug 2004
Posts: 2,923
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4.10 with a a4 will not help him, it will actually hurt him. just stick with the 3.73s unless you're plannin on stalling really high.
__________________
2016 Lamborghini Huracan LP610-4
2012 Lamborghini Gallardo LP560-4 Spyder
2013 Nissan GT-R Black Edition
1999 Trans Am WS6
2000 Trans Am WS6
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09-26-2005, 04:40 PM
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#11
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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Quote:
Originally Posted by GrandmasterCow
4.10 with a a4 will not help him, it will actually hurt him. just stick with the 3.73s unless you're plannin on stalling really high.
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more gear advantage will help him no matter which tranny is in the car. the numerically higher gear will make the car come out of the hole harder and use more of the power band down track.
4.10's are the way to go.
later
tim
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09-26-2005, 04:58 PM
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#12
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Guest
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your thinking of 3rd gens that 4.10s dont help Eric because theyre all low end tq
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09-26-2005, 05:00 PM
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#13
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13 Second Club
Join Date: Aug 2004
Location: Clifton,NJ/ Providence,RI
Posts: 520
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4.11's...ive got 4.30s and i wish i went higher
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09-26-2005, 05:09 PM
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#14
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Join Date: Feb 2005
Location: Cherry Hill
Posts: 388
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yeah this is a primarily street driven car so 4.10's would be too much. i think ill be going with the 3.73's. i just wanted to hear some opinions from people that mightve already had done such a swap, how they liked it. thanks guys!
__________________
93 Formula: If it bolts on then I've got it, only some more expensive red tubes to add underneath and to go inside the engine and trans left.
09 G8 GT: Vararam OTR ram air, American Racing long tube headers with x-pipe, Vector 93 ECM/TCM tune, Magnaflow axle backs, MSD ignition coils, Spohn rear trailing and toe link arms, poly differential and subframe bushings, 20 inch aftermarket Camaro rims, brake upgrades.
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09-26-2005, 06:11 PM
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#15
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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on the steet you will notice a small upgrade in gear as much or more than on teh track.
at 70mph the difference between 3.73's adn 4.10's is about 250rpm. certainly not enough to change teh way you drive or the gas you will use.
if you get teh 3.73's you will end up wishing you had more.
later
tim
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09-27-2005, 07:29 AM
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#16
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Join Date: Aug 2004
Location: Sicklerville, NJ/McGuire AFB
Posts: 457
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Problem with 4.10's is that if you start getting more and more into the mods then with the A4 you're going to catch yourself going into fourth gear at the end of the track (usually speeds around the 115+ range).
The general concensus is that 3.73's are the best compromise for an A4 equipped 4th Gen.
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09-27-2005, 07:56 AM
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#17
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Keyboard Tough Guy
Join Date: Jul 2004
Location: Trenton, NJ
Posts: 6,341
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Quote:
Originally Posted by Fastbird
Problem with 4.10's is that if you start getting more and more into the mods then with the A4 you're going to catch yourself going into fourth gear at the end of the track (usually speeds around the 115+ range). Â*
The general concensus is that 3.73's are the best compromise for an A4 equipped 4th Gen.
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in an lt1 car i think 3.73's would be your best choice imo
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09-28-2005, 06:38 AM
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#18
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Join Date: Feb 2005
Location: Cherry Hill
Posts: 388
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thanks for the info guys
__________________
93 Formula: If it bolts on then I've got it, only some more expensive red tubes to add underneath and to go inside the engine and trans left.
09 G8 GT: Vararam OTR ram air, American Racing long tube headers with x-pipe, Vector 93 ECM/TCM tune, Magnaflow axle backs, MSD ignition coils, Spohn rear trailing and toe link arms, poly differential and subframe bushings, 20 inch aftermarket Camaro rims, brake upgrades.
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10-13-2005, 01:38 AM
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#19
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Join Date: Feb 2005
Location: Hamilton, NJ
Posts: 75
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i switched from 3.23 to 3.42 and noticed a good difference. but if mpg isnt an issue go with 3.73's
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2005 PBM M6 Red interior GTO
-CNC ported LS6 heads, PAC Springs, HPE-C cam, SLP Under-drive pulley, 160 stat, Harland Sharp Rocker arms, Volant CAI, MSD Wires, Ported TB and Stage 2 Intake by Jeremy Formato, ARH 1 7/8 Long tubes and high flow cats, MagnaFlow CatBack, GMM race shifter, Pedders street 1 bushings, Textralia OZ700 clutch, Gforce Halfshafts
455RWHP/411RWTQ
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10-13-2005, 08:20 AM
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#20
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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4.56 8)
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1999 Corvette FRC
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10-14-2005, 05:26 PM
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#21
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14 Second Club
Join Date: Jan 2005
Location: Fair Lawn
Posts: 2,077
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just go all they way n i got 5.86 in the garage if u want to buy them. lol
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2011 Camaro
2012 JKU with Pink wheels
2015 Hellcat 6spd
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