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02-24-2011, 11:32 PM
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#1
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Join Date: Oct 2009
Location: Northern New Jersey/ Syracuse
Posts: 113
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Gears for my Ls1 A4...are they worth it?
So I have been looking for something that will truly change my cars performance without breaking the bank. I want to swap my stock 2.73s to 3.42s. My rear has always whined a lot so I was planning on having it looked at anyways, so I figure why not throw a set of gears in. I don't want a stall at this point because I still daily drive my car and I don't race enough to need one. I am also holding off on headers until I can afford some Kooks or ARH's. My question is will 3.42 gears give me that extra punch I am looking for with my current mods?(in sig)
Nick
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2002 Camaro Z28
Monterey Maroon-Hard Top
6 Speed Swapped, SLP Lid, LM1, UMI LCA's,PHB, K&N, Nittos
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02-25-2011, 05:49 AM
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#2
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11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,619
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They will give a new feel to the car... I would say do a stall as well... These cars drive great with a converter and thats where you really feel it...
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1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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02-25-2011, 07:39 AM
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#3
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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Converter & gears would really be nice. Save your nickles and buy a good rear.
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Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
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02-25-2011, 08:18 AM
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#4
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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If you spend the 7 plus on a good converter and couple it with gears, the car will drive relatively close to stock around town and really wake up when you go WOT.
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02-25-2011, 09:24 AM
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#5
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
Posts: 1,647
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Gears will make your car FEEL faster, but really wont do that much to actually make it faster. A good lock up converter makes a big difference, and it will act the same as your stock converter on the highway. If a converter is out of your budget, or just not what you want right now, consider going with 3.73 ratio gears.
If your car is a DD, and highway RPM/Mileage is a concern, check out this link to calculate your cruising rpm with different gears/tires:
http://www.f-body.org/gears/
Ex....w/ 26" tire....
3.23 ratio = 2050 rpm @ 70 mph
3.42 ratio = 2200 rpm @ 70 mph
3.73 ratio = 2400 rpm @ 70 mph
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1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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02-25-2011, 10:00 AM
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#6
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Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,634
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Something I'd like to point out:
GET A GOOD CONVERTER!
Cheap converters are just that; cheap. And when they fail they'll take out your transmission too. My '98 has been more or less sitting waiting for me to either (a) pay someone or (b) find the time to install the Yank SS 3600 + flexplate I have wating to go in. The car currently has a TCI (Total Crap Industries) 3500 converter in it that has a failing lockup clutch in it. I'm not driving it because I can't afford to rebuild the trans when the clutch completely fails and wipes it.
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1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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02-25-2011, 01:05 PM
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#7
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Join Date: Jul 2008
Posts: 485
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i went from 2.73's to 3.73's and think it was perfect still got 18 mpg city driving like a grandma too
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02-25-2011, 02:00 PM
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#8
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Join Date: Oct 2009
Location: Northern New Jersey/ Syracuse
Posts: 113
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thanks guys, A converter is not what I'm really looking for right now but down the road when I have full bolt ons and a cam I will install a nice converter. I'm just looking for a mod that will hold me over until I can afford a new daily driver so I can go all out with the Ls1.
__________________
2002 Camaro Z28
Monterey Maroon-Hard Top
6 Speed Swapped, SLP Lid, LM1, UMI LCA's,PHB, K&N, Nittos
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02-26-2011, 10:13 PM
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#9
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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A cheaper option would be to find someone selling a stock 3.42 geared 10 bolt, but going that route you don't know the history of the rear.
I think you would love the feeling that a jump from 2.73s to 3.42s will get you, and even though you don't race much, all other factors aside the gear swap will get you a few tenths easy.
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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02-26-2011, 10:19 PM
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#10
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12 Second Club / Bullwinkle
Join Date: Oct 2010
Location: Old Bridge, NJ/Corpus Christi, TX
Posts: 1,847
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imo i would do 3.73 over 3.42
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1994 Medium Patriot Red Z28 6spd
370ci/Huron Speed T6 S480 ET-R HO
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Originally Posted by WSex
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An NJFBOA legend. Ask about him at the next meet.
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02-26-2011, 10:24 PM
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#11
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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i did just this in my 98 trans am... i had 2:73's and went to 3:42's due to it being a DD. make sure u buy the correct gears tho... take out's from a stock 3:42 car wont work, not the right series IIRC. i bought a set of richmonds from summitracing and had them installed. i never did make it back to the track before selling the car but it deff felt quicker and would spin hittin 2nd with 11.5" wide rear wheels!
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02-27-2011, 12:14 AM
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#12
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Guest
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with an LS1 u can probably run 4.10s. i went 11.26 @ 120 with a 5500 stall thats LOOSE AS HELL and 4.30 gears in my 12 bolt. all street ability goes out the window with that though. im going to 3.73s with mine so that i can hit it with a 200 shot and ill be spinning 6700-6900ish. oh and im getting a new converter as well (nitrous likes tight converters)
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02-27-2011, 12:04 PM
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#13
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Join Date: Oct 2009
Location: Northern New Jersey/ Syracuse
Posts: 113
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Thanks again guys. I'm going with some 3.42s to keep it nice and daily drivable. I haven't run my car yet but I will be at Island as much as possible this summer. Any recommendations for shops in the Somerset County, Union County, Northern NJ that are good for the install and also where can I have my speedo re calibrated?
__________________
2002 Camaro Z28
Monterey Maroon-Hard Top
6 Speed Swapped, SLP Lid, LM1, UMI LCA's,PHB, K&N, Nittos
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02-27-2011, 03:41 PM
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#14
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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SSP should be able to take care of you.
- Justin
__________________
1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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02-27-2011, 04:33 PM
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#15
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Guest
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btw, paying to install 3.42s will cost more than buying a 10bolt with 3.42s in it. youll have your 2.73 as a spare for when you break your rear too
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03-02-2011, 03:44 PM
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#16
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by JerzLT1
btw, paying to install 3.42s will cost more than buying a 10bolt with 3.42s in it. youll have your 2.73 as a spare for when you break your rear too
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This is very true.
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03-02-2011, 10:10 PM
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#17
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Join Date: Oct 2009
Location: Northern New Jersey/ Syracuse
Posts: 113
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Quote:
Originally Posted by JerzLT1
btw, paying to install 3.42s will cost more than buying a 10bolt with 3.42s in it. youll have your 2.73 as a spare for when you break your rear too
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What would be the average price of the install and how much for the complete used rear? The problem is, buying a used 3.42 rear is hit or miss...Most likely I will have no idea how many miles it has on it or if it works well. It could work nice and smooth or it could whine and scrape and be garbage.
__________________
2002 Camaro Z28
Monterey Maroon-Hard Top
6 Speed Swapped, SLP Lid, LM1, UMI LCA's,PHB, K&N, Nittos
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03-02-2011, 10:15 PM
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#18
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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You are looking at $175-200 for new gears and usually around $300 for a full install with new bearings.
- Justin
__________________
1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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