*!!!MUSTANGTUNING's OFFICIAL GEAR THREAD!!!* - Page 3

jjtgiants · 10-13-2006, 09:24 AM

Quote:

Originally Posted by The Interceptor

Sorry if this is the wrong thread for this but I was calling shops in the California Bay Area, and most shops want $450-$900 too install the 4.10 gears in my '03! Yeah, $900 and that was just for installation, not including price of gears and fluid. Anyone recommend a shop that will do it out here in the $200 or less range. $450+ is :censored: crazy IMO!

Dude, I hear ya.....That's exactly why I haven't had gears installed. Watch Apex in Santa Clara cause sometimes they have specials for a pretty good price. I think a while back they had one for like $400, which included the gears and labor....I was an idiot and missed out on it.

phil_the_thrill · 11-09-2006, 12:15 PM

alright, those of you with 4.10s, what is your gas mileage on the highway. i did some math on it and came up with a little over 19mpg. i'm not sure if this is actually what it will be its just theoretical. so how many miles per gallon do you guys get on the highway?

bassman97 · 11-09-2006, 12:55 PM

I don't have 4.10 rear gears (I got the stock 3.27) but since I can get 30 mpg on the highway doing 80, I don't think your mileage can any worse than 25 mpg (assuming you do all highway miles on that tank).

phil_the_thrill · 11-09-2006, 03:20 PM

i'm not sure what kind of mods you have done to your car but i cant get anything better than 24mpg on the highway. ive never heard of anyone getting 30mpg in a stang. thats impressive. if the best i can get is 24mpg, then im sure it can drop below 25mpg

Wes8398 · 12-06-2006, 10:20 PM

You'll probably GAIN gas milage with your city driving, and lose a bit on the highway ... reason being is that your smaller gears get you off the line with less effort, so stop and go driving will be easier. But higher RPM's on the highway with yeild a little more gas consumption. I would say it probably all evens out in the end.

To the thread starter - that calculator, is it only for 5spd trannies? Or is my 97 GT auto in there somewhere and I missed it?

GREG@SN95 · 12-06-2006, 11:08 PM

Quote:

Originally Posted by Wes8398

You'll probably GAIN gas milage with your city driving, and lose a bit on the highway ... reason being is that your smaller gears get you off the line with less effort, so stop and go driving will be easier. But higher RPM's on the highway with yeild a little more gas consumption. I would say it probably all evens out in the end.

To the thread starter - that calculator, is it only for 5spd trannies? Or is my 97 GT auto in there somewhere and I missed it?

you have a T-45

phil_the_thrill · 12-07-2006, 11:20 AM

Quote:

Originally Posted by Wes8398

You'll probably GAIN gas milage with your city driving, and lose a bit on the highway ... reason being is that your smaller gears get you off the line with less effort, so stop and go driving will be easier. But higher RPM's on the highway with yeild a little more gas consumption. I would say it probably all evens out in the end.

To the thread starter - that calculator, is it only for 5spd trannies? Or is my 97 GT auto in there somewhere and I missed it?

heres a formula i derived. you can work it out by looking up your gear ratios for your transmission.

RPM=[(miles per hour)(Trans Gear Ratio)(Rear End Ratio)(336)]/(Tire Height in Inches)

you can use that for automatic transmissions if you just look up your gear ratios on google or something

GREG@SN95 · 12-07-2006, 06:13 PM

Quote:

Originally Posted by phil_the_thrill

heres a formula i derived. you can work it out by looking up your gear ratios for your transmission.

RPM=[(miles per hour)(Trans Gear Ratio)(Rear End Ratio)(336)]/(Tire Height in Inches)

you can use that for automatic transmissions if you just look up your gear ratios on google or something

how did you figure 336?

sweat formula though... that comes in handy... that dern website doesn't have a wide selection of trannys

phil_the_thrill · 12-07-2006, 07:59 PM

its several different constants combine. such as pi. its just used to get the circumference of the wheel and i combined all the constants so all you have to do is put in tire height

blackonblack · 03-30-2007, 09:22 PM

OK, really, I'm just a little scared of the gears I have bought. I have a 2000 GT, and I bought the 4.10 gears because of the material I have read here. It seemed to me while reading here that these were the gears to get. Now that I have them and am waiting to get them installed, the general concensus is that this will make the car top out too fast. I have noted myself that my car turns @2500 rpms in 4th gear at 60 miles per hour, and 1500 rpms in 5th gear at 60 miles per hour currently. I put borla exhaust on today and while the car was on the rack I rotated the drive shaft to make sure my gears were 3.27s and they are. My question, after all of that rambling, is: Is my car going to top out too fast? I don't race the car at the track, but I do occasionally eat a rice rocket if it is persistent enough to aggravate me. I drive about 30 miles each day to work and my speed is usually about 70 on the open highway on the way. I want to give my car that umph I used to feel when I first drove it, but I don't want to be driving a car that is too wound up. I would appreciate any input here folks. Thanks.

phil_the_thrill · 03-31-2007, 07:59 AM

you'll only be at 2500 at 70 with 4.10s. thats not bad at all. unless you plan on going 170 on a regular basis then i dont think you'll top out to quick. i say have them installed immediately

blackonblack · 04-01-2007, 04:14 PM

All I needed was to hear someone else say it. Thanks a lot. They're as good as in.

jrock02301 · 06-06-2007, 08:55 PM

Quote:

Originally Posted by blackonblack

OK, really, I'm just a little scared of the gears I have bought. I have a 2000 GT, and I bought the 4.10 gears because of the material I have read here. It seemed to me while reading here that these were the gears to get. Now that I have them and am waiting to get them installed, the general concensus is that this will make the car top out too fast. I have noted myself that my car turns @2500 rpms in 4th gear at 60 miles per hour, and 1500 rpms in 5th gear at 60 miles per hour currently. I put borla exhaust on today and while the car was on the rack I rotated the drive shaft to make sure my gears were 3.27s and they are. My question, after all of that rambling, is: Is my car going to top out too fast? I don't race the car at the track, but I do occasionally eat a rice rocket if it is persistent enough to aggravate me. I drive about 30 miles each day to work and my speed is usually about 70 on the open highway on the way. I want to give my car that umph I used to feel when I first drove it, but I don't want to be driving a car that is too wound up. I would appreciate any input here folks. Thanks.

i actually gained speed in the end with the 4.10s because of multiplying action in the higher rpms where as i didnt have all the power i needed to get up to a good speed in OD but it does now

blackonblack · 06-07-2007, 02:13 PM

There has been too much work and no time for play here lately. We're tooled up and ready to go now, though. The gears will be put in Monday. Hopefully pics are soon to follow. Thanks for the input, by the way.

00WhiteGT · 06-29-2007, 10:11 AM

Yo I was looking for a place to get my 3.73's in the san diego area. So far ive only found Pro Gears and they want $790 for parts and labor, but they gaurentee all their work. hmm anyone know anywhere else to go in the area that will be cheaper, but does good work?

Steeda97 · 08-02-2007, 10:03 PM

I was curious, for a daily driver, which gear is best for mpg? I'm contemplating whether i want 3.73, or 4.10. I drive about 40 miles a day.. I almost never go on the highway.

rebelyell · 08-02-2007, 11:33 PM

For anyone who is wondering (why so much for installing gears). Here's my take: I'm an industrial mechanic, and i have rebuilt plenty of gearboxes for various applications, none for automotive but this should still apply. It aint a simple thing to just throw new gears into anything. Tolerances have to be real close. Too tight of a gear mesh means instant wear. The oil will not get between the teeth as needed. Too loose and the backlash will wear your gears out just as fast. So just take into consideration the ability of yourself or your mechanic to get the optimal space that is needed between the gears, which is normally in the thousands of an inch range. Good mechanics should be paid well for this IMHO..

macj47 · 09-08-2007, 06:25 PM

I've got 3.55 gears on mine, and with a car with a lot of power, it's seemed to work well for me..

NeedACobra · 09-26-2007, 10:47 AM

So if I have a 96 v6 stang, would I need a speed cal or could I just buy that little gear, and should I go with 4.10's or 3.73's? The car is automatic btw.

BrandonJD25 · 01-06-2008, 07:18 PM

i can order just the gears themselves for $160 from here, a kit (fluids, gears, speed calculator) for $330. my question is...is that extra stuff worth it? do i need a tune or calibration after a new gear install? i deff want the gear upgrade, but i'm also on a budget...so nothing unnecessary would be good. haha

B-rett · 01-06-2008, 07:25 PM

its reccomended to get the install kit and new bearing if you have high miles. I got it done anyways with only 20,000 miles to be safe. You do not need a tune or recalibrated but if you dont your speedo will be off.

sHaDy 3.8 · 01-14-2008, 03:16 PM

I know gears will make me accelerate quicker, but i heard they take off on my top speed? is this true?

Lazerred6 · 01-14-2008, 04:10 PM

Quote:

Originally Posted by sHaDy 3.8

I know gears will make me accelerate quicker, but i heard they take off on my top speed? is this true?

how often do you drive around a 110+

11-09-2006, 12:15 PM	#62 (permalink)
phil_the_thrill Senior Member Join Date: Aug 2006 Location: Troy, Missouri Posts: 246	alright, those of you with 4.10s, what is your gas mileage on the highway. i did some math on it and came up with a little over 19mpg. i'm not sure if this is actually what it will be its just theoretical. so how many miles per gallon do you guys get on the highway? __________________ Now accepting donations! If you do the speed limit then get the f*** out of my way! "America is all about speed. Hot, nasty, badass speed." -Eleanor Roosevelt Alcohol may be man's worst enemy, but the bible says love your enemy.

11-09-2006, 03:20 PM	#64 (permalink)
phil_the_thrill Senior Member Join Date: Aug 2006 Location: Troy, Missouri Posts: 246	i'm not sure what kind of mods you have done to your car but i cant get anything better than 24mpg on the highway. ive never heard of anyone getting 30mpg in a stang. thats impressive. if the best i can get is 24mpg, then im sure it can drop below 25mpg __________________ Now accepting donations! If you do the speed limit then get the f*** out of my way! "America is all about speed. Hot, nasty, badass speed." -Eleanor Roosevelt Alcohol may be man's worst enemy, but the bible says love your enemy.

12-07-2006, 07:59 PM	#69 (permalink)
phil_the_thrill Senior Member Join Date: Aug 2006 Location: Troy, Missouri Posts: 246	its several different constants combine. such as pi. its just used to get the circumference of the wheel and i combined all the constants so all you have to do is put in tire height __________________ Now accepting donations! If you do the speed limit then get the f*** out of my way! "America is all about speed. Hot, nasty, badass speed." -Eleanor Roosevelt Alcohol may be man's worst enemy, but the bible says love your enemy.

03-30-2007, 09:22 PM	#70 (permalink)
blackonblack Junior Member Join Date: Mar 2007 Posts: 9	Worried about gears OK, really, I'm just a little scared of the gears I have bought. I have a 2000 GT, and I bought the 4.10 gears because of the material I have read here. It seemed to me while reading here that these were the gears to get. Now that I have them and am waiting to get them installed, the general concensus is that this will make the car top out too fast. I have noted myself that my car turns @2500 rpms in 4th gear at 60 miles per hour, and 1500 rpms in 5th gear at 60 miles per hour currently. I put borla exhaust on today and while the car was on the rack I rotated the drive shaft to make sure my gears were 3.27s and they are. My question, after all of that rambling, is: Is my car going to top out too fast? I don't race the car at the track, but I do occasionally eat a rice rocket if it is persistent enough to aggravate me. I drive about 30 miles each day to work and my speed is usually about 70 on the open highway on the way. I want to give my car that umph I used to feel when I first drove it, but I don't want to be driving a car that is too wound up. I would appreciate any input here folks. Thanks.

03-31-2007, 07:59 AM	#71 (permalink)
phil_the_thrill Senior Member Join Date: Aug 2006 Location: Troy, Missouri Posts: 246	you'll only be at 2500 at 70 with 4.10s. thats not bad at all. unless you plan on going 170 on a regular basis then i dont think you'll top out to quick. i say have them installed immediately __________________ Now accepting donations! If you do the speed limit then get the f*** out of my way! "America is all about speed. Hot, nasty, badass speed." -Eleanor Roosevelt Alcohol may be man's worst enemy, but the bible says love your enemy.

11-09-2006, 12:55 PM	#63 (permalink)
bassman97 blank Join Date: Jun 2006 Location: North Jersey Posts: 1,306	I don't have 4.10 rear gears (I got the stock 3.27) but since I can get 30 mpg on the highway doing 80, I don't think your mileage can any worse than 25 mpg (assuming you do all highway miles on that tank).

12-06-2006, 10:20 PM	#65 (permalink)
Wes8398 Junior Member Join Date: Dec 2006 Posts: 2	You'll probably GAIN gas milage with your city driving, and lose a bit on the highway ... reason being is that your smaller gears get you off the line with less effort, so stop and go driving will be easier. But higher RPM's on the highway with yeild a little more gas consumption. I would say it probably all evens out in the end. To the thread starter - that calculator, is it only for 5spd trannies? Or is my 97 GT auto in there somewhere and I missed it?

04-01-2007, 04:14 PM	#72 (permalink)
blackonblack Junior Member Join Date: Mar 2007 Posts: 9	All I needed was to hear someone else say it. Thanks a lot. They're as good as in.

06-07-2007, 02:13 PM	#74 (permalink)
blackonblack Junior Member Join Date: Mar 2007 Posts: 9	gears There has been too much work and no time for play here lately. We're tooled up and ready to go now, though. The gears will be put in Monday. Hopefully pics are soon to follow. Thanks for the input, by the way.

06-29-2007, 10:11 AM	#75 (permalink)
00WhiteGT Junior Member Join Date: May 2006 Location: San Diego, Cali Posts: 25	gear shop in sd area? Yo I was looking for a place to get my 3.73's in the san diego area. So far ive only found Pro Gears and they want $790 for parts and labor, but they gaurentee all their work. hmm anyone know anywhere else to go in the area that will be cheaper, but does good work? __________________ 2000 White GT (cold air intake, 75mm TB, C&L plenum, intake spacer, mac prochamer, magnaflow cat-back, royal purple oil) Wish list: 3.73 gears, steeda tri-ax shifter, suspension (mm super sport springs, bilstein shocks/struts, mm camber/caster plates, steeda front and rear sway bars, steeda front strut tower brace, mm full length subframe connectors-welded in)

08-02-2007, 11:33 PM	#77 (permalink)
rebelyell unofficial philosopher Join Date: Oct 2004 Location: Fayetteville, NC Posts: 1,673	For anyone who is wondering (why so much for installing gears). Here's my take: I'm an industrial mechanic, and i have rebuilt plenty of gearboxes for various applications, none for automotive but this should still apply. It aint a simple thing to just throw new gears into anything. Tolerances have to be real close. Too tight of a gear mesh means instant wear. The oil will not get between the teeth as needed. Too loose and the backlash will wear your gears out just as fast. So just take into consideration the ability of yourself or your mechanic to get the optimal space that is needed between the gears, which is normally in the thousands of an inch range. Good mechanics should be paid well for this IMHO.. __________________ 2004 Torch Red GT Mach 1 Chin Spoiler "4.6 L V8" Side Stripes Mach 1 Hood stripe Black shorty antenna Flowmaster catbacks

09-08-2007, 06:25 PM	#78 (permalink)
macj47 Junior Member Join Date: Sep 2007 Location: Smithville, TN Posts: 29	I've got 3.55 gears on mine, and with a car with a lot of power, it's seemed to work well for me.. __________________ “I want to be a race car passenger: just a guy who bugs the driver. Say man, can I turn on the radio? You should slow down. Why do we gotta keep going in circles? Can I put my feet out the window? Man, you really like Tide...”

09-26-2007, 10:47 AM	#79 (permalink)
NeedACobra Member Join Date: Jul 2007 Location: Defuniak Springs, Florida. Posts: 58	So if I have a 96 v6 stang, would I need a speed cal or could I just buy that little gear, and should I go with 4.10's or 3.73's? The car is automatic btw.

01-06-2008, 07:18 PM	#80 (permalink)
BrandonJD25 '02 GT...New Project Join Date: Dec 2007 Posts: 80	i can order just the gears themselves for $160 from here, a kit (fluids, gears, speed calculator) for $330. my question is...is that extra stuff worth it? do i need a tune or calibration after a new gear install? i deff want the gear upgrade, but i'm also on a budget...so nothing unnecessary would be good. haha

01-06-2008, 07:25 PM	#81 (permalink)
B-rett BMC Member# 03209 Join Date: Jan 2005 Location: north ridgeville, ohio Posts: 1,594	its reccomended to get the install kit and new bearing if you have high miles. I got it done anyways with only 20,000 miles to be safe. You do not need a tune or recalibrated but if you dont your speedo will be off. __________________ ---35th Anniversary--- 265 rwhp 288 rwtq

01-14-2008, 03:16 PM	#82 (permalink)
sHaDy 3.8 Junior Member Join Date: Dec 2007 Location: NY Posts: 22	I know gears will make me accelerate quicker, but i heard they take off on my top speed? is this true? __________________ 2001 V6 Mustang 3.8