going from 2:73 to 3:73...worth it?
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by BurtReynolds
hello.I have 2.73 in my car and im going to change the m to 3.42 0r 373.I like the 273 for cruising.but dont like the launch or the long as 2nd gear.@ tenths is preety good.wouldnt that be a 2 car lead if say you and another ls1 ran the same time.honestly I dont think nobody got this cars to save gas.
$500+ is around a quarter of the 12-bolt's price. yea, they're expensive, but it's better than snapping your rear and just being out $500+. Choco-do you know how many 10 bolts break? Do you know how many 10 bolts do NOT break? I do not think you do, so take this for example...
My STOCK 10 bolt broke at 60,000 miles with a STOCK motor. STOCK tranny, STOCK geaers. No exhaust. No lid. Not even a damn K&N air filter.
I have seen MANY cars on this forum run 11s with the stock 10 bolt with 4.10s, 3.73s, 3.43s, 3.23s and 2.73s.
I have seen many cars on this forum go to the 10s on a sick H/C setup, a nice cam N20 setup, and FI setups and the factory 10 bolt.
Why in the world would you buy a new rearend before it breaks? A new rear is around $2000 done right. Then you have the install.
You are recommending a $2000 difference in price when it is NOT needed (yet). $500 is not that much to spend at one time on gears. Get the TA cover, some Moser axles and have a strong rear end for 1/2 the price of a 12 bolt.
Some people (like you) are not going to go all out with their cars and will not require a 10 bolt. It is unwise and uneducated to say that running gears will ruin your rearend. All cars are different.
Hey Choco, I knew a guy who died in a car wreck. I wouldn't drive ever again if I were you, because it COULD happen to you. Same ******* logic. It COULD happen, not DEFINATELY, but it could. So why in the world would you give advice telling someone not to run gears in the stock 10 bolt when SOOOOO many people have with great success. Sure, some people don't have good luck with them, but many do.
My STOCK 10 bolt broke at 60,000 miles with a STOCK motor. STOCK tranny, STOCK geaers. No exhaust. No lid. Not even a damn K&N air filter.
I have seen MANY cars on this forum run 11s with the stock 10 bolt with 4.10s, 3.73s, 3.43s, 3.23s and 2.73s.
I have seen many cars on this forum go to the 10s on a sick H/C setup, a nice cam N20 setup, and FI setups and the factory 10 bolt.
Why in the world would you buy a new rearend before it breaks? A new rear is around $2000 done right. Then you have the install.
You are recommending a $2000 difference in price when it is NOT needed (yet). $500 is not that much to spend at one time on gears. Get the TA cover, some Moser axles and have a strong rear end for 1/2 the price of a 12 bolt.
Some people (like you) are not going to go all out with their cars and will not require a 10 bolt. It is unwise and uneducated to say that running gears will ruin your rearend. All cars are different.
Hey Choco, I knew a guy who died in a car wreck. I wouldn't drive ever again if I were you, because it COULD happen to you. Same ******* logic. It COULD happen, not DEFINATELY, but it could. So why in the world would you give advice telling someone not to run gears in the stock 10 bolt when SOOOOO many people have with great success. Sure, some people don't have good luck with them, but many do.
^^^Stole the words out of my mouth. People push deep into the 10's on the 10 bolt.
It's better to spend $2k replacing a perfectly fine rearend than putting 1/4 that into the stocker and most likely never have a problem? 
Jesus choco, I give up....you're right. While we're at it, what do you recommend for my next mod? I see now how you've accumulated so many posts in 6 months. You really need to stick to things that you have experience with and quit basing everything you tell people off stuff you read. People are telling you the exact same thing in an external engine thread right now. Listen for God's sake!!!
Originally Posted by chocotaco369$500
is around a quarter of the 12-bolt's price. yea, they're expensive, but it's better than snapping your rear and just being out $500+.
Jesus choco, I give up....you're right. While we're at it, what do you recommend for my next mod? I see now how you've accumulated so many posts in 6 months. You really need to stick to things that you have experience with and quit basing everything you tell people off stuff you read. People are telling you the exact same thing in an external engine thread right now. Listen for God's sake!!! Last edited by jmm98LS1; Jul 14, 2006 at 04:24 PM.
Originally Posted by monicaz28
Actually, there is quite a difference here. This is one of those things that does just take a little common sense. Think for a second. Let's put 3.73's in both an a4 car and an m6 car and say cruising speed is 70. Now in the a4, you're going to be turning about 2400 rpm's (assuming your converter is locked) and in an m6, you'll be closer to 1700 rpm's (assuming you're in 6th gear). Now that's a pretty big difference in my book. 
Joined: Dec 2001
Posts: 12,829
Likes: 30
From: Central Indiana Honors: 4th grade spelling bee contestant
Get the gears....you won't be sorry. My 125,000 mile 'bird with the 10 bolt and 3.73's does just fine on the street and on the track. This cars are meant to have fun with....as a result gas mileage is an afterthought for me.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
dump $500+ into the 10-bolt. it really doesn't bother me if you do. just if it breaks, you're out the cash for nothing. at least it you put it toward a better rear, you'll get the same performance plus something that likely won't break. you won't have the chance of wasting your money like this.
11 Second Club
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Originally Posted by ChocoTaco369
dump $500+ into the 10-bolt. it really doesn't bother me if you do. just if it breaks, you're out the cash for nothing. at least it you put it toward a better rear, you'll get the same performance plus something that likely won't break. you won't have the chance of wasting your money like this.
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This thread is way the **** out of control. Alot of ignorant statements have been posted, but some very smart ones as well.
Here's the way I see it. Unless you ordered your 4K stall with a high str for the 2.73s (I would guess close to a 3.0 for a DR/ET street car), then that stall may not work great with the 2.73s and you may need to look at a gear change after the TC is installed. Also, while a gear change may not net you alot of time, 2.73s to 3.73s will make the car a whole different animal on the street.
Bottom line is, if your looking for a fun street car, get yourself some gears. If your a budget drag racer and your stall works well with the 2.73s, keep them. Also keep in mind that if the car is hitting hard out of the hole with your 4K/2.73 combo, then switching to 3.73s is only going to create more traction issues and you'll have to start looking at the suspension and tire combo. Just my opinion of course.
Here's the way I see it. Unless you ordered your 4K stall with a high str for the 2.73s (I would guess close to a 3.0 for a DR/ET street car), then that stall may not work great with the 2.73s and you may need to look at a gear change after the TC is installed. Also, while a gear change may not net you alot of time, 2.73s to 3.73s will make the car a whole different animal on the street.
Bottom line is, if your looking for a fun street car, get yourself some gears. If your a budget drag racer and your stall works well with the 2.73s, keep them. Also keep in mind that if the car is hitting hard out of the hole with your 4K/2.73 combo, then switching to 3.73s is only going to create more traction issues and you'll have to start looking at the suspension and tire combo. Just my opinion of course.
Last edited by GM Muscle; Jul 14, 2006 at 08:25 PM.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by GM Muscle
This thread is way the **** out of control. Alot of ignorant statements have been posted, but some very smart ones as well.
Here's the way I see it. Unless you ordered your 4K stall with a high str for the 2.73s (I would guess close to a 3.0 for a DR/ET street car), then that stall may not work great with the 2.73s and you may need to look at a gear change after the TC is installed. Also, while a gear change may not net you alot of time, 2.73s to 3.73s will make the car a whole different animal on the street.
Bottom line is, if your looking for a fun street car, get yourself some gears. If your a budget drag racer and your stall works well with the 2.73s, keep them. Also keep in mind that if the car is hitting hard out of the hole with your 4K/2.73 combo, then switching to 3.73s is only going to create more traction issues and you'll have to start looking at the suspension and tire combo. Just my opinion of course.
Here's the way I see it. Unless you ordered your 4K stall with a high str for the 2.73s (I would guess close to a 3.0 for a DR/ET street car), then that stall may not work great with the 2.73s and you may need to look at a gear change after the TC is installed. Also, while a gear change may not net you alot of time, 2.73s to 3.73s will make the car a whole different animal on the street.
Bottom line is, if your looking for a fun street car, get yourself some gears. If your a budget drag racer and your stall works well with the 2.73s, keep them. Also keep in mind that if the car is hitting hard out of the hole with your 4K/2.73 combo, then switching to 3.73s is only going to create more traction issues and you'll have to start looking at the suspension and tire combo. Just my opinion of course.
a rear is made of more than one part...wow, didn't know that. i've always assumed a differential, gears and axels were all the exact same word...hmm...
If his stall is "mushy" with the 2.73s, there is a good chance that the car won't leave well, especially with an N/A set up. Every .1 in the 60 is worth a solid .15 at the top. I don't think he should make a decision until the stall is in.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by GM Muscle
If his stall is "mushy" with the 2.73s, there is a good chance that the car won't leave well, especially with an N/A set up. Every .1 in the 60 is worth a solid .15 at the top. I don't think he should make a decision until the stall is in.
that being said, i don't think he's posted in 8 pages. i guess he made up his mind. i'm surprised this hasn't been locked a week ago.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by Roarin_8
He should change the gears out when he beefs up the rear end, end of story 
Originally Posted by SVT THIS
He should also probably hold off on a H/C setup until he builds a new shortblock.
Unless you don't have it tuned correctly
