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Discussing Gear Ratios in the 5.0 Mustangs Forum. I just purchased the rear for my mustang project, an 8.8" with 3.... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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#1 |
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Newbie
Join Date: Jan 2007
Posts: 46
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Gear Ratios |
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#2 |
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Regular
1984 GT
Join Date: Nov 2006
Location: Central NY State
Posts: 60
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For the money I'd stick with the 3.55's. For the street I really don't think a gear change is noticeable unless it's by 0.5 or more.
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#3 |
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Newbie
Join Date: Nov 2006
Posts: 6
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What is your car's main application?
Is it going to be an all-time street car for a daily driver? if so then stick with the 3.55's If you plan on taking it to the track every once in a while or showboating a bit then I would personally buy the 3.73's, see if you like them but still keep the 3.55's. if you do like them then you can sell your 3.55's or vice versa if you dont then re-sell the 3.73's I use 3.73's on my 88 GT and I like it but I have never driven with 3.55's so I cant make an actual comparison, sorry. |
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#4 |
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Regular
Join Date: Feb 2007
Posts: 55
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can i ask where you purchased this rear end?L i need one for my project!
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#5 |
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Hardcore Enthusiast
Join Date: Feb 2007
Location: New jersey
Posts: 1,199
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it is not worth it unless you step up at least two gear sizes
__________________
Speed kills drive an import and live forever. 1991 LX 5.0 H/B 1990 T-BIRD SC |
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#6 | |
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MM Ninjas!
1990 Mustang LX
9.36@143 mph
Join Date: Jan 2006
Location: Fond du Lac, Wisconsin
Posts: 6,506
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__________________
Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration ![]() Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft |
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#7 |
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Hardcore Enthusiast
Join Date: Feb 2007
Location: New jersey
Posts: 1,199
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3.55s are fine but I dont think you would feel much of a difference if you only move up one size. either get 4.10 or stick with 3.55s either way a hell of a lot better than 2.73s
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#8 |
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Regular
1989 Mustang GT
14.70@99mph
Join Date: Feb 2007
Location: Belvidere/Champaign ,IL
Posts: 254
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I've got 3.73 in my '89 and I love it! I find it to give plenty of power and i have no complaints. to be honest with you i have never driven on 3.55 so i don't know about those.
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#9 |
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Newbie
Join Date: Jan 2007
Posts: 46
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Sounds like the 3.55's are the better choice. I'll see how I like them, i can get ahold of a set of 4.11's if I decide to step up the size a bit.
I bought the rear end from a friend of mine for 20$, however it needs to be retubed. but the gears and pumpkin are fine, and so are the 5-lug axles. |
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#10 |
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Enthusiast
Join Date: Oct 2006
Location: kc mo
Posts: 709
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I always liked 4.10 for aod and 3.73 for sticks
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FREE LUNCH, FINAL WISDOM, TOTAL COVERAGE... WHY NOT?
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#11 |
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Editor
'88 LX body '91 GT D/T
8.7 in the 1/8th
Join Date: Feb 2007
Location: Down in the basement building a rocket
Posts: 1,325
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As for the gears, I gots 3.73's and I want 3.55's. Twistin 3K at cruise speed is not conducive to keepin a low profile. Especially with no cats and 40 series flowmasters and dumps...
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Founder of the I don't like my shit centerd and want it back the way it was dammit! club www.myspace.com/evoalliance greatest band alive |
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#12 | |
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Enthusiast
Join Date: Oct 2006
Location: Augusta, GA
Posts: 906
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#13 |
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Moderator
Join Date: Aug 2006
Location: Toledo Ohio
Posts: 788
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alright fools i deleted his CAPS that seemed to piss everyone off and re-did it in lowercase so you all can stop bitching now. anyways as far as 3.55s to 3.73s you arnt going to notice much but it depends on your set up. if its a race car and you need that extra little bit more to get you through the traps at the right RPM then go for it but if its just a street toy I doubt you will see much of a difference. If you want a noticable diffrence put 4.10s in it i have them and love them.
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I NEED A NEW MUSTANG PROJECT! 1987-1993 ROLLER WANTED! BRING SLICKS..NOT EXCUSES
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#14 |
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Editor
'88 LX body '91 GT D/T
8.7 in the 1/8th
Join Date: Feb 2007
Location: Down in the basement building a rocket
Posts: 1,325
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'88 body, '91 drivetrain. Started out as a 4cyl w/ 7.5 rearend. Now its a 306, T-5, 8.8 diff. Tires are 245/45R17 at all 4.
?Happy? lol
__________________
Founder of the I don't like my shit centerd and want it back the way it was dammit! club www.myspace.com/evoalliance greatest band alive |
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#15 |
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Newbie
Join Date: Apr 2007
Posts: 22
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I know this is an older post, but I have a question and felt it was better to use this post than to start a new one.
The car (1990 GT) I am thinking about getting has 3.08 gears in the back with a T5 tranny. One of the first things I want to do is replace those 3.08 gears with something else. Now, the car will be used as a daily driver, but it will also be used as an AutoCross car on weekends. I am not really interested in drag racing. So, here is my question, which gear ratio would suite me better? 3.55's or 3.73's? And why? Thanks |
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#16 |
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Newbie
Join Date: Apr 2007
Posts: 23
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3.73's all the way..deff...
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