3.73's or 4.10's

Goldmember

Member

Oct 23, 2004

118

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16

Southen California

Dec 17, 2004

#1

• Dec 17, 2004

• #1

Just wondering what you guys prefer and your experiences.

 

X

xplo89gt

Founding Member

Jul 14, 1999

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Boston, MA

Dec 17, 2004

#2

• Dec 17, 2004

• #2

Do a search. There are tons of these threads out there.

the general rule of thumb is 3.73s if a 5spd, 4.10s for an auto.

 

NKau

Founding Member

Dec 15, 2001

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Jefferson, WI

Dec 17, 2004

#3

• Dec 17, 2004

• #3

I agree. 4.10's are overkill for a 5-speed IMO; I would consider 3.90's though.

 

M

mackey

Active Member

Jan 25, 2003

1,284

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38

Beverly, Massachusetts

Dec 17, 2004

#4

• Dec 17, 2004

• #4

I went from 3.08s to 3.73s... If your goal is to stay N/A for a while go with the 4.10s though. I would have but I am planning on a power adder in the future.

My car: H/C/I T5

 

PhLoBuS

New Member

Aug 15, 2004

473

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Beverly, MA

Dec 17, 2004

#5

• Dec 17, 2004

• #5

i would have to say the 4.10s

 

Michael Yount

Mustang Master

Apr 10, 2002

9,039

6

79

Charlotte, NC

Dec 17, 2004

#6

• Dec 17, 2004

• #6

If your car has 2.73's and you want to know what the 3.73's are gonna be like on the highway - just leave a 5 spd. in 4th, or shift the AOD into 3rd. The rpm difference between those gears in the tranny is almost identical to the 2.73 to 3.73 swap. 4.10's are 10% lower - so they'll add 10% to the highway rpm over the 3.73's.

 

1

10HoleLX

Member

Mar 6, 2004

257

0

17

Southern California

Dec 17, 2004

#7

• Dec 17, 2004

• #7

Looking at my Mustang Performance Handbook:

5 speed with 2.73 in 4th gear at 60 MPH is reving at 2158 RPM
5 speed with 3.73 in 5th gear at 60mph is reving at 2005 RPM
with 25.5 inch diamter tires (225/60/15)

Mr Yount is right.

 

NYC LSC

Founding Member

Feb 16, 2001

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Staten Island, NYC

Dec 17, 2004

#8

• Dec 17, 2004

• #8

4.10s

 

85LXCoupe

Founding Member

Aug 27, 2001

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Victoria, BC, Canada

Dec 17, 2004

#9

• Dec 17, 2004

• #9

4.10's all the way. Seems you end up wish you went one step higher no matter what you choose. My 4.10's put me through the traps right as the shift light comes on

 

X

xplo89gt

Founding Member

Jul 14, 1999

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Boston, MA

Dec 17, 2004

#10

• Dec 17, 2004

• #10

It really depends on what is right for you. So far we don't know if you have an AOD or a 5spd. Is your car a daily driver or weekend car? Will you eventually go with a powerful setup down the line? General cases are easy to pick, but adding up variables can make it a bit more complicated.

 

5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

9,516

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99

Arkansas

Dec 17, 2004

#11

• Dec 17, 2004

• #11

Yep...we need more info...to give you a good "guess" on the gear that would be better suited for you overall...if you want our opinion...

373 = daily driver...(auto or 5spd)...

 

B

BaXTeR3221

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Jan 12, 2004

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Orange County, NY

Dec 17, 2004

#12

• Dec 17, 2004

• #12

3.90's are nice, had em in the car for most of the summer and loved it. The new trans gears are a different ratio so that made the gears less extreme, which works on nicely with a supercharger in the plans. I would say go with some 3.90's if your planning to stay N/A, if going with some boost, get something a little more friendly so you can really enjoy the boost.

 

Wil

New Member

Jan 2, 2003

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Burke, VA

Dec 18, 2004

#13

• Dec 18, 2004

• #13

I love my 4.10's Makes car so much fun to drive. Just watch your foot make's it really easy to speed

 

Goldmember

Member

Oct 23, 2004

118

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Southen California

Dec 18, 2004

#14

• Dec 18, 2004

• #14

I have the 3.27 1st gear 5 speed ratio right now but I will be rebuilding a WC T5 with the 2.95 1st so I'm sort of afraid that I'll have a 1st gear thats way too short. Also I'll be spraying soon and I'll have a blower in the not so near future.

 

NKau

Founding Member

Dec 15, 2001

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Jefferson, WI

Dec 18, 2004

#15

• Dec 18, 2004

• #15

Goldmember said:

I have the 3.27 1st gear 5 speed ratio right now but I will be rebuilding a WC T5 with the 2.95 1st so I'm sort of afraid that I'll have a 1st gear thats way too short. Also I'll be spraying soon and I'll have a blower in the not so near future.

Click to expand...

If you'll be using a power adder......3.55 or 3.73

 

super302

I'd do anything for free Bapples

May 29, 2004

2,878

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Davenport, IA

Dec 18, 2004

#16

• Dec 18, 2004

• #16

i love my 3.73's in my 5speed, couldn't imagine how short 4.10's would be, first gear would only go 10 feet before you need to shift.

 

jb89coupe

New Member

Sep 3, 2004

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CT

Dec 18, 2004

#17

• Dec 18, 2004

• #17

If you live anywhere where you need to take regular long highway trips, forget about the 410s (unless you don't mind cruising at 2300-2400rpm). I had 4.10's in my last fox (91 coupe).. it was a blast on the street, but I hated them on the highway. I have 3.55's now, and as far as I'm concerned this is the best gear to have for a daily driver w/ little or no track time. I can still get to 60 in 2nd gear, and on the highway I cruise at 2000rpm. But then I live in the suburbs and I'm on the highway a lot, I guess it all depends on your surroundings and what you can tolerate.

 

B

BaXTeR3221

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Jan 12, 2004

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16

Orange County, NY

Dec 18, 2004

#18

• Dec 18, 2004

• #18

Usually the different gear ratio kit that you installed in a t-5 have a huge 5th gear. The one i have took my highway RPM at 60 from around 2500 to under 2000....thats an estimate since i dont remember actual numbers, but i know it was a huge difference.

 

Must-Be-A-Stang

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Sep 26, 2004

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Enid Oklahoma

Dec 18, 2004

#19

• Dec 18, 2004

• #19

I got the 2.95 1st gear and 4:10s... and I love it. When I got them in, I was like "WOW!"...that lasted like 15 minutes...then I said "I want MORE!".... so if your not gonna do allot of highway driving...I strongly suggest 4:10s at least. The shifts are short but I only really notice it when I get on the gas. Look at my vids... LOL

 

Grn92LX

Fidanza Man!

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Jan 14, 2001

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Dec 18, 2004

#20

• Dec 18, 2004

• #20

Depends on the combination and goals of the vehicle