Gears 4.10's 3.73's 3.55's????

[joshheat25]

I have a 2000 Mustang GT Automatic and I was debating getting gears. I have to drive this car daily on the road at 70-75 mph so I was wondering if anyone who has gears can tell me what rpm's you run at this speed and also your opinions on what gears I should get.

 

[Darkhorse845]

4.10's no question! I love my 4.10's

 

[joshheat25]

Do you have an auto and also what rpm do you run at 75 dark horse

 

[tomustang]

search the FORUMS

 

[Darkhorse845]

Do you have an auto and also what rpm do you run at 75 dark horse

I don't have an auto Josh I have a manual in my
96.First thing is don't fear the gear!If you are worried about rpm get 3.73's
if you do alot of highway driving.Use an rpm calculator and it will anwser your
question.Yes do a search these gear threads have been beaten to death.

 

[merc123]

General consensus around here is 4.30's for an automatic, 4.10's for MTX N/A and 3.73's MTX Power adder.

 

[joshheat25]

Search the fourums in the 4.6? and also 4.30's jeeze!

 

[joshheat25]

Where can I find an Rpm Calculator?

 

[Rocketman]

Where can I find an Rpm Calculator?

http://www.differentials.com/calc.html

 

[Marks5.0!]

4.10's

 

[Tylerb59]

4.10

 

[Tunez4523]

Another vote for 4.10's. Wasn't long ago and I was in your shoes and they talked me into it too. Thank God they did because I would have spent all my time wondering about the 4.10s if I had bought the 3.73s. I have a 2004 MTX and still happy I went 4.10s!!

 

[scalder]

If you go w the 4.10's you'll wish you would have gone w the .30's....had em both and the .30's are where it's at!

 

[AndyGT]

I did 3.73s in my 2004GT automatic.

The car is a daily driver, and the gears really help the acceleration.

If I raced it, 4.10s would have been better.

 

[joshheat25]

It is a daily driver and I did an online calculator thing and it showed that the rpms at 75 with 3.27s are 2250, with 3.73's 2560, with 4.10's 2820, and with 4.30's 3000. If I were to get gears the jump from 3.73's to 4.10's is too much but probobly worth it out of the hole. I know that it would wear out the engine if it were run at that mph with those gears for a half hour at a time twice a day five times a week. If I had another vehicle those 4.30's would already be in it and this discussion wouldn't be going on!

 

[Green4.6GT]

4.30s or youre a sissy

dont fear the gear!!

 

[BayArea02GT]

I am going with 4:10's ... getting them installed this monday

 

[jas142]

4.10s, 3.73s if you're really concearned, but don't even consider 3.55s cause it wouldn't be worth the money.

 

[DerekStangGT]

my vote is for 4.10s, but i have a manual tranny. great gear with tons of "UMPH". now its looking like i need more power.....