4.10s Affect On 03 Mustangs

fastford03

Member

May 15, 2012

35

0

6

Southside Indianapolis

May 20, 2012

#1

• May 20, 2012

• #1

I used to own a LS1 camaro A4 with 4.10s and I got just terrible gas mileage but could get pull a lot of cars just off those gears alone. Will 4.10s have the same affect on the mustang? It's my daily driver so if not 4.10s what about 3.73s

 

slayerripkdc

15 Year Member

Jun 3, 2003

1,341

16

59

brewster ny

May 20, 2012

#2

• May 20, 2012

• #2

4.10's on an NA 2v are a great gear! Remember that the 2v is down close to 100hp than the LS1 so it wont make up for that.

 

fastford03

Member

May 15, 2012

35

0

6

Southside Indianapolis

May 20, 2012

#3

• May 20, 2012

• #3

is it a solid gear for a daily drive? im just used to the jerk and torque the 4.10s offer. I do miss it!

 

D

Deleted member 38176

May 20, 2012

#4

• May 20, 2012

• #4

I get about 18mpg's right now with 4.10's. Before the 4.10's, I got around 19-20mpg's. The gears aren't going to hurt fuel economy that much. As for the performance aspect of it, they were a night-and-day difference. With the 4R70W tranny 4.10's should be the minimal gear to go with. I almost went 4.30's.

Keep in mind that you're going to need some better tires. I had brand new 275 street tires and they still were no match for 4.10's down low.

 

fastford03

Member

May 15, 2012

35

0

6

Southside Indianapolis

May 20, 2012

#5

• May 20, 2012

• #5

Nightfire said:

I get about 18mpg's right now with 4.10's. Before the 4.10's, I got around 19-20mpg's. The gears aren't going to hurt fuel economy that much. As for the performance aspect of it, they were a night-and-day difference. With the 4R70W tranny 4.10's should be the minimal gear to go with. I almost went 4.30's.

Keep in mind that you're going to need some better tires. I had brand new 275 street tires and they still were no match for 4.10's down low.

Click to expand...

whats the best brand of 4.10s?

 

txredgt

10 Year Member

Oct 26, 2009

1,343

33

69

May 20, 2012

#6

• May 20, 2012

• #6

fastford03 said:

whats the best brand of 4.10s?

Click to expand...

FRPP

 

D

Deleted member 38176

May 21, 2012

#7

• May 21, 2012

• #7

fastford03 said:

whats the best brand of 4.10s?

Click to expand...

As txred mentioned, FRPP or nothing.

 

hotdog71

Member

Dec 8, 2004

427

0

16

Seattle, Eastside

May 21, 2012

#8

• May 21, 2012

• #8

As stated before FRPP all the way!

I Have been driving with mine in for 7 years and get around 16-17 Cty and 25-26 Hwy well worth the trade off!

 

fastford03

Member

May 15, 2012

35

0

6

Southside Indianapolis

May 21, 2012

#9

• May 21, 2012

• #9

hotdog71 said:

As stated before FRPP all the way!

I Have been driving with mine in for 7 years and get around 16-17 Cty and 25-26 Hwy well worth the trade off!

Click to expand...

Well I'm sold, thanks for the advice.

 

apats77

Member

May 2, 2011

178

1

18

Watertown, MA

May 21, 2012

#10

• May 21, 2012

• #10

I have 3.73s with my 5 speed. I get about 15 city and cruising about 25.

 

AZmustang98

Member

Oct 19, 2011

373

17

19

Flagstaff, Arizona

May 21, 2012

#11

• May 21, 2012

• #11

4.10s are for sure the next mod I am doing.

 

bmanrocks01

New Member

Jan 29, 2012

24

0

1

Lebanon, Missouri

May 22, 2012

#12

• May 22, 2012

• #12

4.10's was the first mod i did and its the biggest improvement i think i ever felt on a car. such a minimal price for a lot of low end power.

 

03_TrueBlue_GT

Active Member

May 5, 2010

810

41

29

Houston, Tx

May 22, 2012

#13

• May 22, 2012

• #13

I have FRPP 3.73 gears and love them, and I still have issues hooking up with the 245/45 size tires if I don't do it right. They really wake the car up and feel a lot more lively. On my 93 tune I average about 17.5mpg in the city and 24 on the highway, and mixed driving I get about 18-19 mpg... It actually improved my city mpg from stock when I run on 87 octane it gets about 18-19.