MustangWorks.com - The Ford Mustang Power Source!

Go Back   MustangWorks.com : Ford Forums > Mustang & Ford Tech > Windsor Power
Register FAQ Members List Calendar

Notices


Poll: what is a good rear gear for a 5.0
Poll Options
what is a good rear gear for a 5.0

Reply
 
Thread Tools Rating: Thread Rating: 1 votes, 1.00 average. Display Modes
Old 02-06-2007, 08:44 PM   #1
edward miller
Registered Member
 
Join Date: Feb 2007
Posts: 1
Default rear gear ratio

I have a 1994 GT mustang with the original 5.0L, and would like to experiment with the rear end. I do not want to spend a lot of money doing it. Any suggestions?
edward miller is offline   Reply With Quote
Old 02-07-2007, 11:13 AM   #2
Coupe50h
Registered Member
 
Coupe50h's Avatar
 
Join Date: Aug 2002
Location: SanAntonio, Tx
Posts: 957
Default Re: rear gear ratio

Depends on what your looking for, in a heavy car that would be dragracing on sticky tires i would go 4.10's, but I run a gear that is not in your poll which has my vote the 3.90, I find it optimum for my setup running on slicks.
For a highway cruiser i say 3.55's imo.
__________________
X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's.
race weight 3,160

12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear

13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear
Coupe50h is offline   Reply With Quote
Old 02-07-2007, 11:32 AM   #3
USMC302
Registered Member
 
USMC302's Avatar
 
Join Date: Apr 2001
Location: Gallatin, Tn
Posts: 1,326
Default Re: rear gear ratio

Exactly, alot of consideration is put into what gears to choose from what your intent is with the car. 3.73 aren't so bad on the street IMO, but I run the 4.10's because I use slicks and see more track than street. eitherway, make sure you get a quality set of gears and I suggest having them professionally installed for proper shimming and backspacing, etc..
__________________
USMC302 is offline   Reply With Quote
Old 02-07-2007, 02:12 PM   #4
StangFlyer
Founder
 
StangFlyer's Avatar
 
Join Date: Jun 1995
Location: Michigan
Posts: 19,326
Default Re: rear gear ratio

During my 302 days I used a 3.73 gear set in my Mustang from lightly modded all the way up to heavily modified, and thought it did a great job overall. It's the middle ground between track and street. Once I built my supercharged 377 stroker though, I dropped down to a 3.55 because it makes so much more torque and the 3.55's are more suited to my powerband.
__________________
StangFlyer
1991 Mustang GT - Supercharged 377 Stroker
2000 Ford Lightning - Project Lightning Hauler
Media Center Gallery - View my member photos
StangFlyer is offline   Reply With Quote
Old 02-10-2007, 08:07 AM   #5
Gearhead999
Registered Member
 
Join Date: Sep 1998
Location: Oviedo, FL
Posts: 992
Default Re: rear gear ratio

3.55 unless it has OD then 3.73 or higher.
__________________
"Support our Troops"

Dave
1968 Cougar
2004 Thunderbird
2007 F150 Harley-Davidson, SuperCrew
1986 LTD
1997 Ranger
1992 Honda Civic
Gearhead999 is offline   Reply With Quote
Old 02-12-2007, 01:16 AM   #6
skiwesser
Registered Member
 
skiwesser's Avatar
 
Join Date: Sep 2000
Location: rock hill,S.C. 29730
Posts: 420
Default Re: rear gear ratio

4.10's in an auto
3.73's in a 5-speed
IMHO
__________________
88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306.

DYNO TUNED TO 300.97 RWHP 337RWTQ
skiwesser is offline   Reply With Quote
Old 02-16-2007, 09:48 AM   #7
~The Jester~
Rat Killer
 
~The Jester~'s Avatar
 
Join Date: Aug 2002
Location: Cold ass Ohio
Posts: 1,143
Default Re: rear gear ratio

I was running 4.30's with my 347/TKO and was SERIOUSLY considering stepping down to 4.56's!!!

"Don't fear the gear." But like everyone is telling you, it all depends on what the car is used for, trans, tire size, etc etc.
__________________
d-Con Racing
"Nothing fancy, just 347 inches of RAT POISON!"

MICE need not apply.....

~The Jester~ is offline   Reply With Quote
Old 02-19-2007, 07:22 PM   #8
Ieatcamaros
Domestic Rice really sucks!
 
Ieatcamaros's Avatar
 
Join Date: Apr 2002
Location: KY
Posts: 973
Default Re: rear gear ratio

With an AOD definitely go with the 4.10's. I have 4.10's in mine with the 5 speed and I get 12 mpg with that 750 holley atop the intake. I am thinking of making the switch to 4.30's or 4.56's. If you have a 5 speed, you may want to step down to 3.73's as first gear in a stock t5 is nearly useless for driving around town.
__________________
The sig says it all.
Ieatcamaros is offline   Reply With Quote
Old 02-19-2007, 08:43 PM   #9
andy669
Registered Member
 
andy669's Avatar
 
Join Date: Jan 2001
Location: Moline Il
Posts: 901
Default Re: rear gear ratio

The 94 GT auto's had an AOD-E and a computer with a 5500rpm rev limiter. No way in hell would I put 4.10's in them. With a stock sized tire 95~97 mph in drive is all you are going to get. A 3.73 is a much better choice.

Andy
__________________
88 coupe

91 LX NMRA Pure Street 5120
andy669 is offline   Reply With Quote
Old 03-06-2007, 04:39 AM   #10
goodyear1984
Registered Member
 
Join Date: Dec 2006
Location: new york
Posts: 482
Default Re: rear gear ratio

355 or 373 5 speed.........410 auto...i would only get the ford racing gears they are machined very well and usally dont need to shim them ..get some new clutchs for them limited slip(when i do the clutchs i usally add an extra .15 shim so its tighter)...make sure u check the pinon depth/pattern and the lash(around .08 thou)
good luck...if u need some good instructions on installing them i can e-mail u some pointers
__________________
347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters
^best et so far 11.6 1.61 60ft coming soon 9sec et's
1992 mustang gt
2001 gmc 1500 4x4
78 century boat
92 skidoo
goodyear1984 is offline   Reply With Quote
Old 01-24-2008, 11:13 PM   #11
DaLe five OH!
Registered Member
 
Join Date: Nov 2006
Location: Naples FL
Posts: 106
Default Re: rear gear ratio

3.73's for a AOD, thats what i'm runnin and i'm very happy with them so far
__________________
ZEX
DaLe five OH! is offline   Reply With Quote
Old 04-01-2008, 05:24 PM   #12
88workcar
Registered Member
 
88workcar's Avatar
 
Join Date: Oct 1999
Location: Pierre Part, La. U.S.A.
Posts: 1,850
Default Re: rear gear ratio

Decide WHAT this car will be used for primarily. Stick to that, all your decisions will fall into place for you.

I love my 4.30s, And I got 23mpg with them. Light car, big tire, no accessories, polite driving on long trips. It can be done.
__________________
88workcar
1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft
Rice Hater # 42
To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.
88workcar is offline   Reply With Quote
Old 12-01-2008, 11:22 AM   #13
exgmguy
Registered Member
 
exgmguy's Avatar
 
Join Date: Feb 1999
Location: Utica, Michigan
Posts: 2,631
Default Re: rear gear ratio

It sounds like you have a basically stock car. I would say 3.73's will make you happy for a long time.
__________________
1988 Mustang GT
stock bottom 302, C4
10.9 @ 128 with 8 psi of Novi 1000 boost!----STOLEN

1989 Mustang notchback
Warmed up 306 with a Procharger.
exgmguy is offline   Reply With Quote
Old 01-12-2009, 09:32 AM   #14
FatGuy_in_aLittleCar
Registered Member
 
FatGuy_in_aLittleCar's Avatar
 
Join Date: Jan 2009
Posts: 3
Default Re: rear gear ratio

What gear ratio you choose depends on 2 things .. what are your intentions for the car and what size tire do you plan on running..stock tire height on a fox mustang is 25.6 inches ..every inch of tire height you add or subtract will change your ratio .22 - .25 .. put 4.10 gears in a car and add 2 inches of tire height and all of a sudden you are back to a 3.55
FatGuy_in_aLittleCar is offline   Reply With Quote
Old 08-08-2010, 12:16 AM   #15
The_Nightmare_347
Rev. Magus M. Douglas Hockett
 
The_Nightmare_347's Avatar
 
Join Date: Jul 2010
Location: The Dimensional Planes
Posts: 9
Default Re: rear gear ratio

As much as I truly HATE the company and the personnel there, AMP Performance - just do NOT deal with Mikey there, as he is a real ass****. They make one of the top rear ends for 8.8 comp, mated to a tko 600 or 500 that is incredible. Make sure you go with the upgrade options for Baer Brakes - the PRO plus System - and the heavy duty rear cover. Beyond this, I can also suggest highly using Maximum Motorsports. They are fantastic to deal with, and I have their entire suspension system, and race cage, installed in my 89 LX. They have been nothing but pleasant to deal with, even over the phone, and their technical knowledge is outstanding. Best of luck.

P.S. - the rear end I went with built by AMP Performance was a 3.73 with locker, etc. - all the upgrades, except they screwed me not putting in the 5 stud and put in the 4 stud to spite me knowing they were not getting certain things out of me after and outside work. This rear is mated to a TKO 600 Tranny, and a Custom Built 347 based 302 Boss Block for forced induction, with a full MSD system, a Vortech Ysi Trim Supercharger, Anderson Power Pipe, Anderson PMS, Anderson Mr. Freeze H30/Methanol Injection System (for road use), a JPC Intercooler, a JPC Box and Pump/Snow System (for track use only), and the Aeromotive A-1000 Stealth System with Fuel Return. Those are just the main goodies to play with. I have not yet tried the 3.73 out, however, I know their products extremely well, and until now never had a problem with AMP or any of their personnel. You might say they thought they were winning a lottery at any costs, and got extremely larcenous and felonious with me, even $13,000 of parts stolen off several UPS trucks - anything without a MSO stolen by someone/somebody - then AMP refused to honor their original quotes and prices with me after being sent a $20,000 Cashier's Check. Guess the idea of ruling the world got in their heads somehow, lol, as if they ever would...
__________________
Reverend Magister M. Douglas "The Shadow" Hockett aka The_Nightmare_347www.darkpoetryfromagothicview.com

Last edited by The_Nightmare_347; 08-08-2010 at 12:26 AM.. Reason: Adding in experience with AMP and the Rear End Details
The_Nightmare_347 is offline   Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Which gear ratio? J114 Windsor Power 15 03-21-2007 12:03 PM
gear ratio 88workcar Racer's Club House 2 10-04-2002 02:02 PM
Recommendations on a rear gear ratio jim_howard_pdx Windsor Power 1 09-15-2002 12:10 AM
Gear ratio inferno Blue Oval Lounge 16 03-23-2001 10:05 AM
gear ratio ranger13 Classic Mustangs 1 12-04-1999 05:42 AM


All times are GMT -5. The time now is 07:07 AM.


SEARCH