Actually they're 8.8".Gears in the rear. V8 has 8 inch v6 has 7.5 inch
Stock for 05 - 06
5 speed 3:55
Stock for 07 -08
08 Bullit 3:73
The higher the gear number the quicker the acceleration, but also higher RPMs at speed.
So a 3:73 gear will be quicker then a 3:31 gear. But the 3:31 gear will have a lower RPM at the same speed and better MPG
Ford now has the 3:31 stock for better MPGs
I have an 07, came with 3:31.Not all 5 speeds have the 3.55's some have the 3.31's as I have had a few come through the shop when I was changing them out.
I have an 07, came with 3:31.
05 and 06 5 speed came with 3:55. Ford made the 3:55 an option on all GT in 07 and 08. It was Standard on the 05 and 06 GT 5 speeds.
Yeah...that's flywheel. (Sheesh...wish that was rwhp!!!).You're not going to feel much going from 3.55 to 3.73. What else have you done to the car to get to 340/350? Or are those flywheel horsepower numbers?