3.73 gears or 4.10 gears? I need to get away from the 3.31's

07torchgt · November 5th, 2007, 04:15 AM

I have been searching on here for a while and looking around other places and can't get a good answer on what gears to get... I am definitely going with the Ford Racing gears, probably 3.73's or 4.10's... I was mainly wondering how big of a difference some of you guys experienced with these... I was thinking I might go with something along the lines of 3.90's since they are somewhere in between the two... What do you think... It will probably be some time before I go F/I with it and there aren't any interstates here to worry about high cruising speeds...

GTsetGO · November 5th, 2007, 05:45 AM

go 410's.

i have them and love them. i also have nitrous on my car and plan on going SC'd later.

KBpowered05GT · November 5th, 2007, 10:09 AM

Mainly you need to decide what your combo is going to be. I noticed you plan on going with a supercharger. Will it be a twin screw or centri?Twin screws usually prefer less gear(3.55-3.73) where as the centris usually like 4.10s-4.30s. The 3.73 ratio is a good compromise,because you can play with tire size to get final gear ratio. M N H race tires has 2 diff 17 tires sizes,and BF or Mickey Thompson has the others. My wifes car has a Whipple with 3.73 gears and a 27.5 in tall tire and the street drivability is great. The car also runs low 11's as well on 12lbs boost. My 05 is in the 9's with stock 3.55 gears and a 30 in tall tire. Gears are not the most expensive mod, but its always better to buy somethig once. As for the 3.9s, they are a motive gear(not bad) but more difficult to setup,and most usually make noise. Motive does make the Ford Racing gears too, but the qaulity control for tolerances is stricter ,so the gears tend to be better. Just my opinion tho, in the end its still your car.

Grabber523 · November 5th, 2007, 12:12 PM

Wow...well said, welcome to the site KBpowered...

Mrbonesaw · November 5th, 2007, 12:28 PM

4.10's FTW. Get 'em professionally installed. average $450 to $600 total.

More fun than Magic Mountain and chicks love the ride, too!

MustangJon255 · November 5th, 2007, 12:32 PM

get 4.10s. I just did. And I love it. But no matter what gear you get, you NEED a pro to at least HELP.

G.T. Rags · November 5th, 2007, 01:49 PM

Originally Posted by Mrbonesaw

4.10's FTW. Get 'em professionally installed. average $450 to $600 total.

More fun than Magic Mountain and chicks love the ride, too!

well said

silverstang05 · November 5th, 2007, 01:55 PM

What gears would be best for a turbo/cammed gt?

Jucostud · November 5th, 2007, 02:01 PM

Originally Posted by silverstang05

What gears would be best for a turbo/cammed gt?

4.10's

4.10's are best for everything except a twinscrew

Drick · November 5th, 2007, 02:05 PM

Originally Posted by silverstang05

What gears would be best for a turbo/cammed gt?

3.73s. If you have the hp you dont need the gear to carry it so 3.73s will work great for a turbo cammed gt. When I build my stroker im getting rid of my 3.73s and going down to 3.25s because like I said if you have the HP you dont need the gear. All the gear is is a torque multiplyer

jat · November 5th, 2007, 02:10 PM

Originally Posted by Jucostud

Originally Posted by silverstang05

What gears would be best for a turbo/cammed gt?

4.10's

4.10's are best for everything except a twinscrew

turbo is better with 3.31s or 3.55s they spool better...

07torchgt · November 5th, 2007, 02:12 PM

I am gonna have the Ford dealer here install them... I have done gears in the past... I know how and I know its a pain to get the teeth meshed perfectly sometimes... I just don't have the time and I don't want the dealer fighting me if I need something warranted... The are only charging me $390 labor for the install... I am definitely gonna go F/I but that will be way down the road and when I do I will be going with the Saleen from Brenspeed... However, it will be a good while down the road so I think I might just go ahead and do the 3.73... I guess it would make a big difference if I went 4.10 but I am sure I will still have fun with the bolt ons running 3.73...

jat · November 5th, 2007, 04:59 PM

id do saleen from jdm engineering if i were u

KBpowered05GT · November 5th, 2007, 06:31 PM

May want to consider the Whipple kit. There are some people making some real good numbers. The Whipple also has that crazy blower sound too, with 600 rwhp potential.

msolaas1 · November 5th, 2007, 06:40 PM

i have a saleen s/c car with 3.73 and i love it... just for your info

Grabber523 · November 6th, 2007, 01:14 AM

If you plan on making it a serious 1/4 mile car as well as street driving, you may consider going with 3.73's...if you're cranking out enough power with a 4.10 rear end, you may run out of gear and have to shift to 5th before the end of the track...in which case you'd be going back to a taller gear, like a 3.73...

Jucostud · November 6th, 2007, 01:25 AM

Originally Posted by jat

Originally Posted by Jucostud

Originally Posted by silverstang05

What gears would be best for a turbo/cammed gt?

4.10's

4.10's are best for everything except a twinscrew

turbo is better with 3.31s or 3.55s they spool better...

there is less lagg with 4.10's because you rev faster

Drick · November 6th, 2007, 01:34 AM

Originally Posted by Jucostud

Originally Posted by jat

Originally Posted by Jucostud

Originally Posted by silverstang05

What gears would be best for a turbo/cammed gt?

4.10's

4.10's are best for everything except a twinscrew

turbo is better with 3.31s or 3.55s they spool better...

there is less lagg with 4.10's because you rev faster

You will run out of gear with a turbo and that low of gears

G.T. Rags · November 6th, 2007, 01:35 AM

Originally Posted by 8t6gt

Originally Posted by Jucostud

Originally Posted by jat

Originally Posted by Jucostud

Originally Posted by silverstang05

What gears would be best for a turbo/cammed gt?

4.10's

4.10's are best for everything except a twinscrew

turbo is better with 3.31s or 3.55s they spool better...

there is less lagg with 4.10's because you rev faster

You will run out of gear with a turbo and that low of gears

that really depends dude.......

if ur running under 9 psi u should be cool

Drick · November 6th, 2007, 01:37 AM

But who buys a S/C on a built motor and runs under 9 psi lol not many I imagine

November 5th, 2007, 04:15 AM	#1
07torchgt Regular Join Date: Nov 2007 Posts: 278 iTrader: 0 reviews	3.73 gears or 4.10 gears? I need to get away from the 3.31's I have been searching on here for a while and looking around other places and can't get a good answer on what gears to get... I am definitely going with the Ford Racing gears, probably 3.73's or 4.10's... I was mainly wondering how big of a difference some of you guys experienced with these... I was thinking I might go with something along the lines of 3.90's since they are somewhere in between the two... What do you think... It will probably be some time before I go F/I with it and there aren't any interstates here to worry about high cruising speeds...

November 5th, 2007, 05:45 AM	#2
GTsetGO Cigar Assassin 2004 Mustang GT 12.88 @ 112 Join Date: Aug 2005 Location: A Galaxy Far, Far Away Posts: 14,081 iTrader: 10 reviews	go 410's. i have them and love them. i also have nitrous on my car and plan on going SC'd later. __________________ Cigar Samplers for Sale 2008 Acura TL-S - 2008 Honda Pilot EX-SE

November 5th, 2007, 10:09 AM	#3
KBpowered05GT Premium Member Join Date: Nov 2007 Posts: 16 iTrader: 0 reviews	re gears Mainly you need to decide what your combo is going to be. I noticed you plan on going with a supercharger. Will it be a twin screw or centri?Twin screws usually prefer less gear(3.55-3.73) where as the centris usually like 4.10s-4.30s. The 3.73 ratio is a good compromise,because you can play with tire size to get final gear ratio. M N H race tires has 2 diff 17 tires sizes,and BF or Mickey Thompson has the others. My wifes car has a Whipple with 3.73 gears and a 27.5 in tall tire and the street drivability is great. The car also runs low 11's as well on 12lbs boost. My 05 is in the 9's with stock 3.55 gears and a 30 in tall tire. Gears are not the most expensive mod, but its always better to buy somethig once. As for the 3.9s, they are a motive gear(not bad) but more difficult to setup,and most usually make noise. Motive does make the Ford Racing gears too, but the qaulity control for tolerances is stricter ,so the gears tend to be better. Just my opinion tho, in the end its still your car.

November 5th, 2007, 12:12 PM	#4
Grabber523 Your Mom's Favorite 2007 Mustang GT Eats Chevys, Shits Imports... Join Date: Mar 2007 Location: Scott AFB, Illinois Posts: 2,490 iTrader: 0 reviews	Wow...well said, welcome to the site KBpowered... __________________ http://www.moddedmustangs.com/forums...p-vote-me.html TEAM RICER GT CREW MEMBER (11 SECOND RIDE WITH A 12 SECOND DRIVER) MEMBERS AGAINST MEMBERS AGAINST STUFF CREW FOUNDER TRUNK MONKEY CREW FOUNDER

November 5th, 2007, 12:28 PM	#5
Mrbonesaw Regular Join Date: Apr 2007 Location: Carson Ca Posts: 251 iTrader: 0 reviews	4.10's FTW. Get 'em professionally installed. average $450 to $600 total. More fun than Magic Mountain and chicks love the ride, too! __________________ *316rwhp 333rwtq* STEEDA-UDP's CMRPDelete 90mmCAI 4.10's SCTLivewire Hurst Spydershaft 20"Razors Edelbrock Bassani-XPipew/Cats & Axlebacks Hurst Crew Member #4

November 5th, 2007, 12:32 PM	#6
MustangJon255 Regular 2005 Mustang GT 12.67 Join Date: Apr 2007 Location: Houston,Tx Posts: 374 iTrader: 0 reviews	get 4.10s. I just did. And I love it. But no matter what gear you get, you NEED a pro to at least HELP. __________________ "Never before has a 12 second car looked so mean and intimidating. Bring it." Go to www.fquick.com/americanmuscle255 for all info as well as videos!

November 5th, 2007, 01:55 PM	#8
silverstang05 Regular Join Date: Aug 2007 Location: Delray Beach Posts: 199 iTrader: 0 reviews	What gears would be best for a turbo/cammed gt? __________________ 2005 Mustang GT -STS single turbo kit 478whp/465wtq @10psi -Fidanza 4.3 clutch Should i use my race gas tune i have??

November 5th, 2007, 02:12 PM	#12
07torchgt Regular Join Date: Nov 2007 Posts: 278 iTrader: 0 reviews	I am gonna have the Ford dealer here install them... I have done gears in the past... I know how and I know its a pain to get the teeth meshed perfectly sometimes... I just don't have the time and I don't want the dealer fighting me if I need something warranted... The are only charging me $390 labor for the install... I am definitely gonna go F/I but that will be way down the road and when I do I will be going with the Saleen from Brenspeed... However, it will be a good while down the road so I think I might just go ahead and do the 3.73... I guess it would make a big difference if I went 4.10 but I am sure I will still have fun with the bolt ons running 3.73...

November 5th, 2007, 04:59 PM	#13
jat Hardcore Enthusiast Join Date: Jan 2007 Location: Maspeth , Queens, NYC Posts: 1,341 iTrader: 0 reviews	id do saleen from jdm engineering if i were u

November 5th, 2007, 06:31 PM	#14
KBpowered05GT Premium Member Join Date: Nov 2007 Posts: 16 iTrader: 0 reviews	re S/C May want to consider the Whipple kit. There are some people making some real good numbers. The Whipple also has that crazy blower sound too, with 600 rwhp potential.

November 5th, 2007, 06:40 PM	#15
msolaas1 Regular Join Date: Apr 2007 Posts: 71 iTrader: 0 reviews	i have a saleen s/c car with 3.73 and i love it... just for your info __________________

November 6th, 2007, 01:14 AM	#16
Grabber523 Your Mom's Favorite 2007 Mustang GT Eats Chevys, Shits Imports... Join Date: Mar 2007 Location: Scott AFB, Illinois Posts: 2,490 iTrader: 0 reviews	If you plan on making it a serious 1/4 mile car as well as street driving, you may consider going with 3.73's...if you're cranking out enough power with a 4.10 rear end, you may run out of gear and have to shift to 5th before the end of the track...in which case you'd be going back to a taller gear, like a 3.73... __________________ http://www.moddedmustangs.com/forums...p-vote-me.html TEAM RICER GT CREW MEMBER (11 SECOND RIDE WITH A 12 SECOND DRIVER) MEMBERS AGAINST MEMBERS AGAINST STUFF CREW FOUNDER TRUNK MONKEY CREW FOUNDER

November 6th, 2007, 01:37 AM	#20
Drick Big timin' in a small town 2004 FX4 F150, 86 GT Join Date: Apr 2007 Location: Gods country. Nordern Michigan eh Posts: 14,336 iTrader: 1 reviews	But who buys a S/C on a built motor and runs under 9 psi lol not many I imagine __________________ FX4 Crew Crew member #1 Don't take anything I say to heart, I don't try to come off as an asshole. It just happens

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3.73 gears or 4.10 gears? I need to get away from the 3.31's

3.73 gears or 4.10 gears? I need to get away from the 3.31's

re gears

re S/C