whats the best rear end gears with a t-56

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11-09-2002, 07:36 PM

rocketsled

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whats the best rear end gears with a t-56

would like to know what gear is better 4.10s or 3.73s i would like to keep a good 1/4 mile time. but i want the car to pull hard though all the gears. <img border="0" alt="[Camaro]" title="" src="graemlins/camaro.gif" />

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11-09-2002, 09:01 PM

I8AFORD

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Re: whats the best rear end gears with a t-56

4.10 w/boltons
3.73w/bolt ons and NOS

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11-10-2002, 10:20 AM

WMSuperSport

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Re: whats the best rear end gears with a t-56

4.10s all the way. I lost no gas milage.

I cruise at 2K RPM at 70 MPH.

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11-10-2002, 02:55 PM

2001CamaroGuy

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Re: whats the best rear end gears with a t-56

3.73s worked nice for me

I don't drag....just wanted a little boost in daily driving and didn't want to make 1st gear like a Mac truck...

I cruse at 2,000 RPM at 80 MPH

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11-10-2002, 07:48 PM

rocketsled

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Re: whats the best rear end gears with a t-56

what will get me the best 1/4 mile time?

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11-11-2002, 12:48 AM

WMSuperSport

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Re: whats the best rear end gears with a t-56

4.10s if you can hook up.

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11-12-2002, 05:31 PM

rocketsled

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Re: whats the best rear end gears with a t-56

i am running 3.23's right now. and i also heard that with 4.10's u have to use 5th gear is this true?

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11-13-2002, 03:29 PM

buschman

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Re: whats the best rear end gears with a t-56

Is there a site somewhere that allows you to figure out the mathematics of it all? I'm trying to decide between 4.10s and 4.30s. I want to have a nasty gear for the street but also put myself in the power as I cross the line. But not know how to calculate gear ratios to trap speeds to RPMs, I can't figure out which one. There's got to be a site out there that helps out.

Thanks,
Mike B.

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11-13-2002, 03:32 PM

Fireball

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Re: whats the best rear end gears with a t-56

<blockquote>quote:<hr />Originally posted by buschman:
I want to have a nasty gear for the street but also put myself in the power as I cross the line. <hr /></blockquote>Thats why I run 4.71s <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

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11-13-2002, 04:20 PM

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jd13

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Re: whats the best rear end gears with a t-56

I've been wondering the same thing. 4.10s or 3.73s? If no gas milage is lost, then I guess I'll go with 4.10s. But how does the stock rearend hold up with 4.10s? Especially with DRs?

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11-13-2002, 04:40 PM

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up2late76

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Re: whats the best rear end gears with a t-56

i read that CARTEK is using stock GM 10 bolts w/ 4:10's and not having any issues. they are apparently doing something differant than everyone else. in a recent high performance pontiac magazine article they said they set up them up w/ 10 thousands clearance between the gears. this is supposed to allow more fluid between the gear teeth hence "cushioning" the blow of the launch. they said it is alittle more noisey than usual, but it lasts longer... i'm still having trouble deciding myself- 4:10's or 3:73's. i have heard that 4:10's have trouble hooking on the street...

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11-13-2002, 06:21 PM

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buschman

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Re: whats the best rear end gears with a t-56

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11-13-2002, 08:41 PM

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bigSS

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Re: whats the best rear end gears with a t-56

IMO unless you have an agressive Heads/Cam car churning 6800+ rpm OR your running a taller tire than stock (25.6 I believe) the best gear for street/strip is 4.10s.

www.prestage.com ... go to CAR MATH

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11-14-2002, 10:24 AM

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Coach 02 A3 Z/28

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Re: whats the best rear end gears with a t-56

I run a little oh.... 5.13 gear in my M6 Hot Rod! <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />

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11-14-2002, 10:34 AM

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Hardtop

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Re: whats the best rear end gears with a t-56

<blockquote>quote:<hr />Originally posted by buschman:
Is there a site somewhere that allows you to figure out the mathematics of it all? I'm trying to decide between 4.10s and 4.30s. I want to have a nasty gear for the street but also put myself in the power as I cross the line. But not know how to calculate gear ratios to trap speeds to RPMs, I can't figure out which one. There's got to be a site out there that helps out.

Thanks,
Mike B.<hr /></blockquote>Mike if your car is still bolt on get the 4.10's. Mine went thru the lights at 6000 rpm according to the stock pos tach when I was bolt on. 4.30's would be too much for a bolt on car IMHO.

Bruce

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11-14-2002, 10:35 AM

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WMSuperSport

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Re: whats the best rear end gears with a t-56

1/4 mile time depend alot more than just gear. it includes tire height and shift points as well.

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11-14-2002, 03:07 PM

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KTamez

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Re: whats the best rear end gears with a t-56

<blockquote>quote:<hr />Originally posted by Fireball:
Thats why I run 4.71s <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <hr /></blockquote> <blockquote>quote:<hr />Originally posted by Coach 02 M6 Z/28:
I run a little oh.... 5.13 gear in my M6 Hot Rod!<hr /></blockquote>

Boy you guys make me feel like a weenie with my 4.56s, 4.30s, and 3.50s. <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />

Any guesses on which gearsets go to which cars? <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />

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11-14-2002, 04:14 PM

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XFiveLiter

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Re: whats the best rear end gears with a t-56

<blockquote>quote:<hr />Originally posted by KTamez:
 <blockquote>quote:<hr />Originally posted by Fireball:
Thats why I run 4.71s <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <hr /></blockquote> <blockquote>quote:<hr />Originally posted by Coach 02 M6 Z/28:
I run a little oh.... 5.13 gear in my M6 Hot Rod!<hr /></blockquote>

Boy you guys make me feel like a weenie with my 4.56s, 4.30s, and 3.50s. <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />

Any guesses on which gearsets go to which cars? <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" /> <hr /></blockquote>Fireball and Coach are using some "ignorant gears" for sure, but they are not using a 26 inch tire either (at least I hope not <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> ). For a bolt-on car w/a 26 inch tire use 4.10s and h/c car probably a 4.30 or so. JMO <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

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