Anyone try 4.56 gears?

[burke07gtcs]

I have 4.10s & I am not really happy with them. My elevation is 5600 & the air measures 8500ft. All of my driving is in town & there is no interstate for 200 miles. The car is heavy & they worked very well in my alum. headed 5.0, just wondering if anyone is using them?

 

[anthony05gt]

No, I don't know anyone using them. I have 4.10's and I think 1st gear is kind of short for street driving. After the Procharger comes off and the Whipple goes on I might go back to 3.55's or maybe 3.73's.

 

[Mighty Mineral]

I run 4.56's on my car. I too started with 4.10's and was not satisfied with the outcome. While it is not the most highway friendly ratio I wouldn't want it any other way.

 

[burke07gtcs]

Mighty mineral about what rpm do you turn @ 65mph? Also I run a 295/40/18 for tires so maybe that is some of it. I will stay N/A for the life of the car thanks

 

[kooldawg6]

295/40 is the same height as the stock 235/50 tires(27.3"), so the only difference would be increased rolling resistance due to width and weight. No difference in changing your effective gearing. I would guess the 4.56s to be just under 3000 RPM@65. If so, that could still be very streetable. With my 4.10s it's just under 2500 RPM.