WaterDR

Here is another tech:

One of the best mods on a stang is gears. Why? Because Ford builds the mustangs for the masses and late model cars come with fuel efficient 3.27's. So what gear should you get? Here is my "expert" humble opinion:

3.55's - Waste of time on a near stock or even moderately modded mustang. Good fit if putting down lots and lots of power.

3.73's - Great "all a round gear" and ideal for the person who has his stang as a daily driver. Good gear for a power adder too such as turbo or nitrous.

3.96's - For wimps who won't get 4.10's (hey, don't get offended, but just get the darn 4.10's). I would get this gear for a daily driven automatic possibly.

4.10's - The perfect gear for a near stock or even modified NA stang that is not putting down too much power. Also a good choice for nitrous applications from the stand point that most of the time, you don't run the juice anyway.

4.30's - Great gear for an auto when 4.10's are desired.

Keep in mind that choice of tire and rim size will affect your final drive ratio. If the owner desires to increase his tire and wheel height, that is the same as going back on a gear size.

Also, while GT's come standard with 3.27's, Mach I's have 3.55's as well as Cobra's. If I had a car that came stock with a 3.55, I would most likely not waste my time with the expense of putting in 3.73's. That might be a good time to go with 4.10's or at least a 3.96.

Simply "upgrading" to 18 inch rims even if the tire and wheel height is the same as with 17's will slow the car down off the line due to the extra weight of the combo. Going up in gear will give the car back what it lost and then some more.

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Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump

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madmatt

Another great tech thread. Thanks for the advice...now Im even more confused on what gears to get.

MainstreamStang

Looks like Gears are next!

Black 4.6 Beast

i think 4.10's no less on any 4.6 stang , i had 3.73's and regreted them so went to 4.10's

EH819

Good post.

Anyone know the rpm difference between 3.73s and 4.10s at 70mph in 5th gear? I would like to go with 4.10s in the future, but I do take the car on some decently long trips and don't want my gas mileage to go completely down the tubes.

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00GT
Amazon Green/Tan
5 Speed

Mods
Performance: K&N Air Filter, Air Silencer Removed, MAF Screen Removed, Accufab 75mm Throttle Body, C&L Upper Intake Plenum, Hooker coated Long Tube Headers and X-Pipe with cats welded in, SLP Loudmouth LM1 Catback, Steeda Tri-Ax Shifter, Mach 1 Shift Knob
Exterior: 01+ Hood Scoop, Mach 1 Grill Delete, 8" Radio Antenna

Black 4.6 Beast

mine was 200 or 250 rpm diffrence if i remember correctly ! gas mileage wasnt affected much but i recomend u got 4.10's u wont regret it !

EH819

Ok, cool. Thanks for the info. Just have to save up some extra money now.

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00GT
Amazon Green/Tan
5 Speed

Mods
Performance: K&N Air Filter, Air Silencer Removed, MAF Screen Removed, Accufab 75mm Throttle Body, C&L Upper Intake Plenum, Hooker coated Long Tube Headers and X-Pipe with cats welded in, SLP Loudmouth LM1 Catback, Steeda Tri-Ax Shifter, Mach 1 Shift Knob
Exterior: 01+ Hood Scoop, Mach 1 Grill Delete, 8" Radio Antenna

Lamar

Just get my 3.73 installed for $300 included additional parts and I'm very happy with it

I like the kick in second gear!

Jeremy98GT

I have a 98 GT and it has 2.73 so 3.55 would feel considerably faster for me anyways but what is the cost of getting them put in regularly?

WaterDR

$500 - $700 is what you should expect to pay for parts AND labor from a shop. It is a difficult job. An inexperienced person can take all day. Some pros can do in 2 - 3 hours.

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Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump

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bshiek

4.10's!

I'd say the install price depends on your market. In MN, there is a deal for about $375 right now, and that's one of the most recommended speed shops here offering it.

Me, I'm going to attempt them myself. I know, I know. I'm not recommending that the average joe attempt this. Not that I'll be very successful -- I just want to learn!

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02 GT 5 spd

cronin49

Chris Winters down at Crazy Horse Racing in South Amboy NJ installed my 373's in 1 hour and 15 minutes. Needless to say I was amazed. Great place to have work done.

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Performance - 373's, Magnaflow catted X, Magnaflow Mufflers, C&L upper intake, Accufab 75mm TB, Steeda CAI, Superchips Tuner 1725.

Appearance - CDC Light Bar, Grillcraft Upper and Lower Grills, SS Mesh Inserts in Hood and Side Scoops, Bullitt Fuel Door, Billit Shorty Antenna, Windshield Wiper Deletes, Bullitt Gearshift Knob and Bezel, Hollow Point Door Pins and Valve Stems, Various Billit Aluminum Interior and Engine Dress Up Items.

2003 LASER RED GT CONVERTIBLE, PREMIUM

xcler8

Besides gears....what is all neccesary for a low mileage automatic?

WaterDR

hour and 15 minutes? Are you sure they actually put in gears? That's fast!!!!!

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Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump

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mike sweeney

Just put in My 3.73's last week and cant stop smiling. This definetly should be everybodys first mod

WaterDR

Welcome to the board Mike!

Another happy gear customer!

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Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump

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spike_africa

yeah 500 bucks sound more like it to me. thats what i paid to have my 99 f150's gears changed to 4.10's

madmatt

I guess it depends on the mufflers you have, but im afraid that if I only go to a 3.73, it will put me right smack dab in the middle of drone central and I DONT want that.

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jeffs98gt

Don't fear the gear or the drone, you didn't buy a mustang to be guiet or slow, did you? I have 4.10's in my 98gt, don't get 3.73 and regret it as so many others have.

cronin49

Yep. I watched him do it. Chris Winters is a regular in MM&FF mag. He is an expert. Guys got an '03 Cobra, stock except for a Bassani mid pipe and cat back and a different blower pulley, runs 11.8's at Englishtown on stock tires. He is the best driver I have ever seen. He drove my car with me in it to check the gears out after the install, he made my car do things that I could not duplicate in my wildest dreams.He told me that with my car and its mods, he could run way low 13's all day. Wish I could do that.

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Performance - 373's, Magnaflow catted X, Magnaflow Mufflers, C&L upper intake, Accufab 75mm TB, Steeda CAI, Superchips Tuner 1725.

Appearance - CDC Light Bar, Grillcraft Upper and Lower Grills, SS Mesh Inserts in Hood and Side Scoops, Bullitt Fuel Door, Billit Shorty Antenna, Windshield Wiper Deletes, Bullitt Gearshift Knob and Bezel, Hollow Point Door Pins and Valve Stems, Various Billit Aluminum Interior and Engine Dress Up Items.

2003 LASER RED GT CONVERTIBLE, PREMIUM

WaterDR

Just goes to show you that the best mod is a good driver.

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Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump

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spike_africa

yuo just gotta practice powershifting it makes your car go bloody fast.

GoldMustangGT

I want 4.10's just need the funds, haha...

madmatt

Yea I think im going to buy the gears and speedcal and then when tax returns come, Im going to get them installed...mmm cant wait. Oh and then of course theres graduation money LOL .

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WaterDR

Graduation? Zhit, how are are you guys? I am an old fart. I am probably the oldest fart on this forum.

But, I am starting grad school in a few months. Finally going for the MBA.

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Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump

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madmatt

Im the kid that everyone hates because im in highschool with a V8. The only thing is mommy and daddy didnt buy my car. They signed the paper, but Yours Truely makes the monthly on it...Kinda sucks but ive definately got an appreciation of how the whole monthly budget thing works. I am also really mature for my age and unlike most other teenages with V8's, i dont find being a Jackass in my car to be something to joke about. These cars demand respect and when you thing you are a man, it will show you its ass in a hurry. Gosh, I sound like you you old fart Hope yalls opinion of my hasnt changed. LOL better than the hondas I used to want...oh lord, what was I thinking.

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