4.10s Affect On 03 Mustangs

[fastford03]

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]

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]

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!

 

[Deleted member 38176]

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]

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.

whats the best brand of 4.10s?

 

[txredgt]

whats the best brand of 4.10s?

FRPP

 

[Deleted member 38176]

whats the best brand of 4.10s?

As txred mentioned, FRPP or nothing.

 

[hotdog71]

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]

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!

Well I'm sold, thanks for the advice.

 

[apats77]

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

 

[AZmustang98]

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

 

[bmanrocks01]

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]

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.