Originally Posted by
GNs-r-slow
If you want gas mileage leave it as the Ford made it. If you want performance I personally wouldnt spend the money on 3.55's, better performance gains w/ 3.73's or 4.10's. All depends on what your plans are for the car
I wanna maintain somewhat good mileage but still have decent performance. Plans for the car are just bolt-ons and maybe cams in the future.