3.42 or 3.73...
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Joined: Jul 2006
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From: Augusta GA
3.42 or 3.73...
Ok I have a 01 auto with the 2.73 and really need to upgrade what would you upgrade to the 3.42 or the 3.73's and why??? I do a lot of highway driving but I am looking for that red light launch where you really feel it in the seat of the pants. Which should I go with.
Racer
Joined: Nov 2004
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From: TX
Originally Posted by GOWINGS
Ok I have a 01 auto with the 2.73 and really need to upgrade what would you upgrade to the 3.42 or the 3.73's and why??? I do a lot of highway driving but I am looking for that red light launch where you really feel it in the seat of the pants. Which should I go with.
Team Owner
Joined: Mar 2005
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From: Somewhere between mild insanity and complete psychosis
I'm keeping the 2.73 and getting a yank ss3200 stall. Just the stall will launch better/have a faster 60ft time than just the gears. And once it locks up, you'll still have 2.73 gears for highway cruising and top speed. Basically, best of both worlds. Ask around the automatic tranny forum at ls1tech.com. Converters at least this big usually take off .5 in the 1/4mile, gears only maybe .2 in most peoples results.
Pro
Joined: Aug 2006
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From: Houston Tx
Originally Posted by GOWINGS
Ok I have a 01 auto with the 2.73 and really need to upgrade what would you upgrade to the 3.42 or the 3.73's and why??? I do a lot of highway driving but I am looking for that red light launch where you really feel it in the seat of the pants. Which should I go with.
If you dont mind the crappy gas mileage on the HWY then go with the 3:73. It will definately help your 60's and 1/4 mile times. Like what was said before, if you also get a vigalante converter and a drag radial put on the car, you will gain an easy .5 off your 1/4 mile time.
Steven Fereday
Horsepower Engineering
281-448-1300
Last edited by Allthrottleandsomebottle; Aug 31, 2006 at 10:46 AM.
Team Owner
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From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Originally Posted by GOWINGS
Ok I have a 01 auto with the 2.73 and really need to upgrade what would you upgrade to the 3.42 or the 3.73's and why??? I do a lot of highway driving but I am looking for that red light launch where you really feel it in the seat of the pants. Which should I go with.
Mileage will drop to about 23mpg on the highway. I love my 01 with this set-up and could care less about the couple mpg I lost. This car is for enjoyment, not fuel conservation. 
Le Mans Master
Joined: Aug 2004
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From: West Michigan crew Mich
CI 7-8-9 Veteran
St. Jude Donor '07-'08 & '12
I love my 3.73s and vig 3200 t/c. I turn about 2500 rpm at 75mph very streetable. Its a whole new car now From a standing start just hit the gas and burn rubber and get sideways So much more fun to drive now
From a standing start just hit the gas and burn rubber and get sideways So much more fun to drive now
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Verdad Gallardo
Team Owner
Joined: May 2005
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From: Flagstaff Az.
Gears
Unless you intend to spend a lot of time at the strip, go with the 3:42s and a hi-stall convertor. You will lose a lot more than an couple of miles per gallon, especially with the 3:73s. I went from 31 to 26 with just 3:42s and would probably go a couple more down with the 3:73s. Good luck with what ever you choose.
Pro
Joined: Aug 2006
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From: Houston Tx
Originally Posted by slolane
I love my 3.73s and vig 3200 t/c. I turn about 2500 rpm at 75mph very streetable. Its a whole new car now From a standing start just hit the gas and burn rubber and get sideways So much more fun to drive now
From a standing start just hit the gas and burn rubber and get sideways So much more fun to drive now
Thread Starter
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Joined: Jul 2006
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From: Augusta GA
Thanks
I really dont plan on spending much time at the track at all, just a little more pick up on the street....And im sure I can find the 3.42 for alot better price than the 3.73, and save the money for the stall converter. Thanks for all the info.
Melting Slicks
Joined: Apr 2001
Posts: 2,909
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From: Highland Village TX
Originally Posted by RonnieLS1
3:90 and a SS4000 stall. You will be rippin it up.
I am selling a Yank SS4000 Torque Converter, do a search, just came out today and it is in perfect condition!
3.73's, but I have 3.42's.
3.42's are better if your doing a lot of highway driving, if not 3.73
Melting Slicks
Joined: Mar 2005
Posts: 2,364
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From: Rugby North Dakota
YOU are looking for the same thing I was - I put in a Yank SS 3200 stall and an ECS 3.73 rear end - talk about SEAT of the PANTS feel - love it, and I plan on mine being a highway car also
to do it over, I'd even seriously consider a Yank SS3600 stall converter - In the future I might be sorry I didn't go w/ the SS3600 - I'm not sure abt the SS4000 - that might be TOO much of a stall converter
SO, for SOTP feel, go w/ the 3.73's and a torque converter of some kind - you won't be disappointed!! 
!!
to do it over, I'd even seriously consider a Yank SS3600 stall converter - In the future I might be sorry I didn't go w/ the SS3600 - I'm not sure abt the SS4000 - that might be TOO much of a stall converter
SO, for SOTP feel, go w/ the 3.73's and a torque converter of some kind - you won't be disappointed!!
!!
Racer
Joined: Mar 2004
Posts: 401
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From: Sterling Heights MI
Around town 3.73. If you spend much time over 60mph, the 3.45 may be a better choice with the lower entry fee. If you are mostly a city driver with traffic lights, you would love the 3.73. Either one is a BIG jump over the 2.73.
Racer
Joined: Aug 2003
Posts: 348
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From: Sacramento CA
I'd stick with the 3.42's since you'll be highway driving. going from 2.73 to 3.73 (1.00 dif) is a huge jump, I went from 3.42 to 4.10 (.68 dif) and I wish i had went for the 3.90. but to play devils advocate, these 4.10 are bad@$$. just not as friendly for daily driving.
Burning Brakes
Joined: Apr 2003
Posts: 908
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From: TROY MI
Originally Posted by 16Again
3.73 and a SS3600 T/C Mileage will drop to about 23mpg on the highway. I love my 01 with this set-up and could care less about the couple mpg I lost. This car is for enjoyment, not fuel conservation.
Mileage will drop to about 23mpg on the highway. I love my 01 with this set-up and could care less about the couple mpg I lost. This car is for enjoyment, not fuel conservation. I have the same setup and could not agree more.
Advanced
Joined: Aug 2006
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From: somewhere TX
not to steal the thread but someone told me if u had 2.73s nothing else could fit only if u had the 3.42 diff. u could put bigger geras....please if u know for sure pm me thank you for your help...
Team Owner
Joined: Apr 2001
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From: S.W. Ohio. . . . . . NRA Life Member
Originally Posted by bluebody
not to steal the thread but someone told me if u had 2.73s nothing else could fit only if u had the 3.42 diff. u could put bigger geras....please if u know for sure pm me thank you for your help...
4.10 can be put in the 2 series case.
