3:55s ?? gear help !!

blakehunter316 · February 26th, 2008, 09:06 AM

ok i have stock gears in my gt 5 speed but i want something a little better. I'm deciding either 355s or 373s i want to get the best gas mileage but are 355s worth it over stock?

1BADSTANG · February 26th, 2008, 09:18 AM

yes they are but 3.73's literally are the perfect gear for the foxes. Trust me. Ive owned 4 foxes. 4.10's kill the gas mileage. 3.55's are good, but with the torque and horsepower curves i guess you would say, the 3.73's make the biggest difference. Gas mileage is still great with 73's. Get 3.73's trust me.dont do 55's

86_Notch · February 26th, 2008, 10:01 AM

Originally Posted by 1BADSTANG

yes they are but 3.73's literally are the perfect gear for the foxes. Trust me. Ive owned 4 foxes. 4.10's kill the gas mileage. 3.55's are good, but with the torque and horsepower curves i guess you would say, the 3.73's make the biggest difference. Gas mileage is still great with 73's. Get 3.73's trust me.dont do 55's

I AGREE % 100
i've also had lots of foxes with many different gear ratios and 373s are PERFECT
BTW i've gotten as much as 24 mpg on a road trip with a very mild engine combo, t 5, and 373s

flattusmaximus78 · February 26th, 2008, 10:08 AM

Originally Posted by 1BADSTANG

yes they are but 3.73's literally are the perfect gear for the foxes. Trust me. Ive owned 4 foxes. 4.10's kill the gas mileage. 3.55's are good, but with the torque and horsepower curves i guess you would say, the 3.73's make the biggest difference. Gas mileage is still great with 73's. Get 3.73's trust me.dont do 55's

yeah going from 10 to 8 mpg

1986GT · February 26th, 2008, 10:56 AM

I have 3.73s and i love them, go for the 3.73 gears man

Iwannagofast · February 26th, 2008, 01:06 PM

what does 4th gear and 5th gears top out at with the 3.73's

White 89 · February 26th, 2008, 03:14 PM

Yeah I'd like to know with 3.73's what RPM are you turning driving 80MPH

&

what rpm would you be turning with 3.55's doing 80MPH

95opal · February 26th, 2008, 03:39 PM

Originally Posted by White 89

Yeah I'd like to know with 3.73's what RPM are you turning driving 80MPH

&

what rpm would you be turning with 3.55's doing 80MPH

Plug your numbers in here.
Ford Mustang: Mustang Tech: Calculators & Decoders: RPM Calculator

Iwannagofast · February 26th, 2008, 04:14 PM

hey opal are the 94-95 t5 geared the same as the foxes

95opal · February 26th, 2008, 06:10 PM

Originally Posted by Iwannagofast

hey opal are the 94-95 t5 geared the same as the foxes

Yup, From the factory they have basically the same gear set up.

invisa stang · February 26th, 2008, 06:22 PM

all T-5's that come in the mustangs from foxes till now have the same gearing

other then the ones that came in the 2.3L foxes

flattusmaximus78 · February 26th, 2008, 06:57 PM

3:55's at 80 is 2200-2400 in my 93 gt.

Black Five 0h · February 26th, 2008, 08:42 PM

3.55 and 3.73 are almost un noticably differentits about a 300 rpm difference between gears

JONJON · February 27th, 2008, 12:05 AM

I like my 3.73 they made a night and day difference,performance wise.

blakehunter316 · February 27th, 2008, 12:24 AM

you guys are killin me lol but god i want 373s i just dont want to be passin everything but the gas station as they say

Iwannagofast · February 27th, 2008, 12:40 AM

thats what im thinkin.......it shouldnt be too much worse though.....it says you should be at about a lil over 2000 at 65 mph.......i like being able to hit high speeds also

blakehunter316 · February 27th, 2008, 12:56 AM

yea i mean its nice to be in 5th gettin like 26 27 mpg on the interstate goin like 65 70 just cruisin makes me feel good like im drivin a non gas gusler but then i find a straght stretch and then i want 373s lol

Drick · February 27th, 2008, 01:55 AM

I have 3.73's in mine I love them and you cant go wrong with em

3.55's just arent quite enough IMO

p-351 · February 27th, 2008, 02:31 AM

I didn't really notice a difference in mileage going from 3.55s to 3.73s, but I did notice a difference in the around town driving. It works well with the gearing in the T-5 and the engine's powerband/torque curve. I've got them in the wife's 94GT also (AODE though), and it gets 23-24 on the highway still.

IMO you will regret your decision if you get the 3.55s because they don't feel as good as 3.73s and the mileage difference in negligable at best.

blakehunter316 · February 27th, 2008, 08:28 AM

so what about in town driving whats my mileage looking to be ??

February 26th, 2008, 09:06 AM	#1
blakehunter316 Regular 1989 Mustang GT 14.01 @ 103..... :( Join Date: Feb 2008 Location: Connersville Indiana Posts: 365 iTrader: 0 reviews	3:55s ?? gear help !! ok i have stock gears in my gt 5 speed but i want something a little better. I'm deciding either 355s or 373s i want to get the best gas mileage but are 355s worth it over stock? __________________ vortech s-trim off road h pipe super 40's steeda tri-ax c.a.i. 3.73s subframe cnntrs 255er

February 26th, 2008, 10:56 AM	#5
1986GT Newbie 1986 ? Join Date: Feb 2008 Posts: 14 iTrader: 0 reviews	I have 3.73s and i love them, go for the 3.73 gears man __________________ 86' Mustang GT 306, Ford Racing T5, 24# injectors, 65mm throttle body, CAI in fender, MAF conversion, shorty headers, O/R H pipe w/dronemasters, king cobra clutch, 3.73 gears, short shifter

February 26th, 2008, 03:14 PM	#7
White 89 Enthusiast Join Date: Oct 2007 Posts: 825 iTrader: 0 reviews	Yeah I'd like to know with 3.73's what RPM are you turning driving 80MPH & what rpm would you be turning with 3.55's doing 80MPH __________________ 1989 mustang GT 5.0

February 26th, 2008, 06:22 PM	#11
invisa stang Regular 1992 mustang lx notch Join Date: May 2007 Location: shelton, ct Posts: 423 iTrader: 0 reviews	all T-5's that come in the mustangs from foxes till now have the same gearing other then the ones that came in the 2.3L foxes __________________ [rides 1987 ford F-350 XLT Lariat 7.3L idi diesel projects 1979 ford F-350 custom (soon to get 7.3Lidi diesel) 1992 ford mustang notch (just shell soon to get engine and drive train hopefully)

February 26th, 2008, 06:57 PM	#12
flattusmaximus78 I Post Entirely Way Too Much 1993 5.ohhhh 12.97 @140mph Join Date: Apr 2006 Location: Gatorland Posts: 6,122 iTrader: 3 reviews	3:55's at 80 is 2200-2400 in my 93 gt. __________________ 02 Pewter z28, hoosiers/lid/exhaust/spray...125mph 1993 gt Sold, already missed --Moates Quarter horse $225-- --Cobra intake $150-- --tremec 3550 bell and shifter $1100--

February 26th, 2008, 09:18 AM	#2
1BADSTANG Hardcore Enthusiast Join Date: Sep 2007 Location: long island Posts: 1,515 iTrader: 0 reviews	yes they are but 3.73's literally are the perfect gear for the foxes. Trust me. Ive owned 4 foxes. 4.10's kill the gas mileage. 3.55's are good, but with the torque and horsepower curves i guess you would say, the 3.73's make the biggest difference. Gas mileage is still great with 73's. Get 3.73's trust me.dont do 55's

February 26th, 2008, 08:42 PM	#13
Black Five 0h Enthusiast 02 Mustang GT Cant wait to find out Join Date: Mar 2007 Location: Connecticut Posts: 567 iTrader: 1 reviews	3.55 and 3.73 are almost un noticably differentits about a 300 rpm difference between gears __________________ 02 Mustang GT "We build it up, run it hard, we know whats breaking and we enjoy it breaking, we dump money into it, we re-build it stronger, run it harder in anticipation of it breaking again. We are sick individuals."

February 27th, 2008, 12:05 AM	#14
JONJON Regular 1988 Ford Mustang GT 8.372@82.8 1/8mile w/1.825 60' Join Date: Sep 2007 Location: Miami,FL Posts: 357 iTrader: 0 reviews	I like my 3.73 they made a night and day difference,performance wise. __________________ I never thought I would own a mustang!!!

February 27th, 2008, 12:24 AM	#15
blakehunter316 Regular 1989 Mustang GT 14.01 @ 103..... :( Join Date: Feb 2008 Location: Connersville Indiana Posts: 365 iTrader: 0 reviews	you guys are killin me lol but god i want 373s i just dont want to be passin everything but the gas station as they say __________________ vortech s-trim off road h pipe super 40's steeda tri-ax c.a.i. 3.73s subframe cnntrs 255er

February 27th, 2008, 12:56 AM	#17
blakehunter316 Regular 1989 Mustang GT 14.01 @ 103..... :( Join Date: Feb 2008 Location: Connersville Indiana Posts: 365 iTrader: 0 reviews	yea i mean its nice to be in 5th gettin like 26 27 mpg on the interstate goin like 65 70 just cruisin makes me feel good like im drivin a non gas gusler but then i find a straght stretch and then i want 373s lol __________________ vortech s-trim off road h pipe super 40's steeda tri-ax c.a.i. 3.73s subframe cnntrs 255er

February 27th, 2008, 01:55 AM	#18
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	I have 3.73's in mine I love them and you cant go wrong with em 3.55's just arent quite enough IMO __________________ 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

February 27th, 2008, 02:31 AM	#19
p-351 Regular 90&94 GTs; 79&91 Broncos Join Date: Aug 2007 Location: Fargo Posts: 307 iTrader: 1 reviews	I didn't really notice a difference in mileage going from 3.55s to 3.73s, but I did notice a difference in the around town driving. It works well with the gearing in the T-5 and the engine's powerband/torque curve. I've got them in the wife's 94GT also (AODE though), and it gets 23-24 on the highway still. IMO you will regret your decision if you get the 3.55s because they don't *feel* as good as 3.73s and the mileage difference in negligable at best.

February 27th, 2008, 08:28 AM	#20
blakehunter316 Regular 1989 Mustang GT 14.01 @ 103..... :( Join Date: Feb 2008 Location: Connersville Indiana Posts: 365 iTrader: 0 reviews	so what about in town driving whats my mileage looking to be ?? __________________ vortech s-trim off road h pipe super 40's steeda tri-ax c.a.i. 3.73s subframe cnntrs 255er

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