ORIGINAL: jbailer

I know, I know... but I'm still driving it on the street and much bigger than that really effects drivability (again - wuuuss). -Joe

ORIGINAL: Sidewayz6.0

Well here's my short tirade on why that guy doesn't know what he's talking about. 4.10 gears in a basically stock Mustang will actually increase your top end. WHAT??? You say? Here's why. And I'm really tired of explaining it so all you others that like to give this advice "4.10's are WAY too much gear for your car on the street" take note.

Mustangs do not have enough horsepower to overcome the drag at high speeds. Let's say for instance that your top end is around 155 drag limited. With the 4.10 gear, your engine doesn't have to work as hard to turn the rear tires. So not only will you get there faster, but since you're now actually using the horsepower more efficiently, you may actually get a 165 mph top speed.

Again, there is a point to where the gears will slow you down. But you'll need to be making way more power over stock. Get the idea?

ORIGINAL: Sidewayz6.0

Thats the way I would have done it. But nobody listens to me for some reason. God knows I don't know what I'm doing.

For the record, I've got a set of 4.30's going in my fox very shortly. And I'm concerned that it might not be enough gear.

ORIGINAL: praztek

Those that have 4.10's, any issues with the oem driveshaft vibrating? Since its rotating at a higher revolution, was just curios?


Thanks