Ford Mustang Forum banner

1 - 10 of 10 Posts

·
Registered
Joined
·
1,828 Posts
get under the car, mark the drive shaft, then spin the driveshaft so that the wheels make one full rotation and that gives you the gear ratio. for example if the driveshaft spins 4.1 times then you know you have 4.10. if it spins. if it spins almost 4 times chances are you have 3.73 almost 3 times is 2.73 and so on

good luck!
 

·
Banned
Joined
·
12,435 Posts
most like 3.73s...having 20" wheels is making the car have less gear/slower, so consider that
 

·
Registered
Joined
·
2,288 Posts
I would say 3.73 to 1 as well. The 3.55 is not enough to make a difference over your factory gear. The 3.73 provides a nice performance bump without hurting mileage in a significant way.
 

·
Registered
Joined
·
5,431 Posts
I want 3.73's the 3.27's lag from 2-4K, if staying NA 4.10's or 4.30's are the ticket:bigthumbsup
 

·
Registered
Joined
·
490 Posts
brutal- 4.10-4.30s. ur a mad man!:shigrin haha thats insane. to steep for my taste. unless i was strictly drag racing
 

·
Registered
Joined
·
1,828 Posts
My 4.10s are great! i do plenty of highway driving and have a top speed of 120 `ish
no real decrease in mpg or driveability
 

·
Registered
Joined
·
806 Posts
brutal- 4.10-4.30s. ur a mad man!:shigrin haha thats insane. to steep for my taste. unless i was strictly drag racing
i have 4.10s and do alot of highway driving as well. im at 3k rpms ar about 80ish. I love 4.10's, i had 3.73's but dropped them and went 4.10's if i didnt do alot of highway driving i would go for 4.56's
 
1 - 10 of 10 Posts
Top