Hi guys,

I am in the process now for changing my final gear and have my differential reinforced by Comptech.
However, I have a big dilemma of which gear set to choose from (4.3 or 4.57)
My major concern is how much each of the above gears will reduce the top speed.

I know that with the stock 4.1 final gear the top speed is about 285 kmh or 177 mph.
Does anybody know what the top speed will be with 4.3 and 4.57 final gears?

Thanks

 

Try this to figure out speeds in each gear:

http://www.reverendsgarage.net/index.php?c..._calculator.php

 

4.3 = 157.7 mph
4.57 = 148.4 mph

 

Do you often travel at or above 120mph?

 

Never before I had gears, and never since.

 

only at the track

not on the street

 

I love my 4.57 gears.

 

In the parking lot at work





I don't see any wrenches turning.