need help with gears

[whiteboy10690]

i have a 03 and im looking in to making it faster im buying a programer and herd every one talk about gears what gears should i go with for speed where can i get them

[Mike in AZ]

The discussion on 4.10 and 4.56 gears has been continuous for the last year on at least a dozen different threads. LOTS of reading available at your fingertips.

In a nutshell, the 4.10s will be a 10% increase in rear wheel torque with a corresponding 10% increase in rpm at any given speed over your stock 3.73s. The 4.56 will be a 20% increase.

Details and opinions are abundant in the threads.

Mike

[Yellow Tub]

My turn...

The tub needs a little help... 410 vs 456.. Hmmm

ALL opinions welcome. What I know... I want new gears! What I don't know...

LOTS...


she is an 05' with an automatic and factory running gear... no mods at this time although it may change on the 10th

Bruce
Yellow Tub

[hdflstf]

You know what they say about opinions....

I can give you a ride in mine 4.10s. 6 speed though.

[Yellow Tub]

Yes I know about opinions... Some people actually pay me for mine...

Seriously, I am stumped... It seems like everybody that is changing them has a 3 pedal. With new knees, shifting is to much work especially if the clutch is a BIG # clutch. That is why I went to a auto after they replaced my knee.

Still open to all opinions... Come one come all

Bruce
tub

[whiteboy10690]

thanks i will try to deside and let every one know how it works

[hdflstf]

Start with Jim Gniteki's writeup on his getting gears. You may want to buy his book as well. He went to 4.56.

Strictly performance gain, go 4.56.

If you want a slightly more factory type setup and a balance of mileage and performance, go the 4.10s.

[mikepowell]

the general consensus is if you are leaving your ssR mostly stock the 456's are the way to go
but if more power is in the future 410's may be a better choice
good luck

[blueroadster06]

It's your SSR...The question is What do you want? I know performance...but to what degree.......hot 410's blue hot 456's or do you want brown spots in your seat????? 456's 3400 yank torque conventer and a good tune......

Its your SSR My hope is that it is BLUE happy motoring

[whiteboy10690]

im planing on performince in the future im going with more upgrades

[mikepowell]

with the blower first and second end pretty quickly
I can't imagine trying to keep up shifting with 456's

[dhartl]

456, servos, shift kit, nitrous, and power tune, go all out

[SoonerRed]

Originally Posted by yellow tub

Yes I know about opinions... Some people actually pay me for mine...

Seriously, I am stumped... It seems like everybody that is changing them has a 3 pedal. With new knees, shifting is to much work especially if the clutch is a BIG # clutch. That is why I went to a auto after they replaced my knee.

Still open to all opinions... Come one come all

Bruce
tub

Bruce - looking to do the same thing with my '05 4 speed. I've ordered the servo from Phoenix but cannot locate the 4.56's I want. I hear the best are made by American Axle, but cannot locate any. From what I've seen, the difference between 4.10 & 4.56 is a couple hundred rev's on the highway.

Good luck and the exhaust is next on my list of upgrades after the gears.

[Mikeyram]

Originally Posted by SoonerRed

Bruce - looking to do the same thing with my '05 4 speed. I've ordered the servo from Phoenix but cannot locate the 4.56's I want. I hear the best are made by American Axle, but cannot locate any. From what I've seen, the difference between 4.10 & 4.56 is a couple hundred rev's on the highway.

Good luck and the exhaust is next on my list of upgrades after the gears.

Doug, try calling Tracy at Fuel Injection Specialties, 11051 Wye Drive, San Antonio, TX 78217 Phone: 210.654.0774, Fax: 210.654.1444. She sold me and several other Fanatics some American Axle 4.56's for the autos. These gears are quiet.

[big-daddy]

Whatever ratio you choose, use American Axle, OEM replacements. There are others out there, but they will sing and you will forget the performance gains once you are at highway speed listening to them WHINE.

[Dicktator]

I have an 04/auto.

I had it dyno tuned, changed gears to 4:10, K&N Filter, Maganflow, Throttle Body ported/polished, shift patterns changed, throttle response changed.

I have posted before that I picked up about 2mpg in town with 4:10 gears. Run between 17.5 and 18.2 mpg on regular gas in town, which is where I do most of my driving. I contribte that to the fact, it moves the heavy SSR easier.

Had it tuned for regular. I don't race. I did however LOSE 3mpg on the highway. Only getting 20mpg where I used to get 23mpg. I could get even better performace w/93 octain. But, why??

The 4:10 gears are a great improvement but not as fast as 4:56, BUT, your gas mileage will go to pot w/4:56 gears, and you have to ask, "Is it worth it"?
The 4:10 gears improve your performace by 10%, as already stated, but remember, your RPM's will be 10% higher also. I see about 400 rpm increase at 65mph.

That, by the way, only applies to auto trans. If I had the 6 speed, manual, I would certainly change to 4:56. Much better match because of the 6 gears instead of our 4.

I am happy with what I have done. I used all the imput from our fellow SSR Fanatics to make my decisions.

Also, as already stated, be careful which gear manufacture you pick and who installs them. They will whine with a bad install.

Hope this is of some help.

Dick

[REBEL]

My experience is ...

4:56 gear on 2003 with the lm4 engine, along with a pro tune gets me better gas mileage.

My average for last year with stock gears and factory tune was 15.2.

That is with going on the hot rod power tour and the chocolate run (long trips for me)

Now with 308 miles on new gear and tune my average is at 17.8 and climbing with more out of town driving and less start / stop playing.

At 70mph on cruise I get 22mpg.

[vettegirl]

I have test-driven Pasta Mike's auto and waysouth's 6-speed, both with 4:56 and tune from PCM For Less. Wow! Feels like it takes 1500 pounds off the SSR, and the 4:56 is very streetable, not too radical for a daily driver (but understand my daily driver is a Z06 ). Also the PCM For Less tune has the speedo calibration problem solved. PM Pasta Mike or waysouth6speed for more info.

[golfer2]

since with 4.56 gears and a pro tune you can get better mpg, can we still get better mpg with the pro tune and 4.10 gears ??

i have a hard time believing that you dont have to give more gas at a higher rpm.

tony

[REBEL]

YES

THE GEARS DO NOT HELP GAS MILEAGE
The tune gets the mileage back that you loose to the gears.
If you get black in your tailpipes your running to rich and wasting gas.

If you have black in your pipes with factory gears, a tune will get you mileage.
If you have black in your pipes with 4:10 gears, a tune will get you mileage.
I posted this because my 4:56 is getting better mileage than my stock gears and stock tune. I had black tailpipes

My first post was to share that 4:56 can get 22mpg at 70 mph, set at cruise.

and todate 17.8 is my average with 4:56

[Dicktator]

I was wondering the same thing, Tony. I didn't experence better mileage on the Highway, and I thought it was because of more rpm's. I would think, that more rpm's would consume more fuel.
Now I know that lower gears move the load easier and that is why I saw better mileage around town. Didn't have to get into it as hard at the light.

Now after my gears were changed, they reprogramed my computer to represent the gear change. I don't know if that is tied to the mileage computations or not, I would think so.

My wife's new Mercury says she is getting 3 miles per gallon more than what she is really getting, based on the old fashion way of dividing mileage into gallons.

Bottom line!! Do what makes you HAPPY, I am very satified with my decisions.
If I wasn't, I would make more changes.

Originally Posted by golfer2

since with 4.56 gears and a pro tune you can get better mpg, can we still get better mpg with the pro tune and 4.10 gears ??

i have a hard time believing that you dont have to give more gas at a higher rpm.

tony

[Dicktator]

I agree that a tune improves mileage.

When I had mine dyno tuned, the fuel/air mix from the factory was way off.

And yes, Rebel, it was really rich!! They were wasting a lot of gas.

Every change I have made has been with a tune at the completion. That way, I always try to get the best milegae and performace.

It would be a wast to change gears and not tune, in fact, the SSR's should all be turned based on what I saw.

Originally Posted by REBEL

YES

THE GEARS DO NOT HELP GAS MILEAGE
The tune gets the mileage back that you loose to the gears.
If you get black in your tailpipes your running to rich and wasting gas.

If you have black in your pipes with factory gears, a tune will get you mileage.
If you have black in your pipes with 4:10 gears, a tune will get you mileage.
I posted this because my 4:56 is getting better mileage than my stock gears and stock tune. I had black tailpipes

My first post was to share that 4:56 can get 22mpg at 70 mph, set at cruise.

and todate 17.8 is my average with 4:56

[REBEL]

This is the hand held device that brings the custom tune to me.
I have tunes for 89 /91 /93 octain with 4:56 gear
If I go with a mag. supercharger I will need to install near the tuner's shop or fly him up here for real fine tuning.

http://www.hensonperformance.com/Productsgmtel.html

[Double-L]

Originally Posted by mikepowell

the general consensus is if you are leaving your ssR mostly stock the 456's are the way to go
but if more power is in the future 410's may be a better choice
good luck

True and if you are going to make a lot of power the 3.73's are the better choice