Mac93

That doesn't sound too bad. Anyone with 4.10s?

titanium92

Must be the mods you have on your car cause that sounds a bit low for 3.73's. I would be running higher RPM's with my stock gears. I run about 2100 RPM's @ 75mph.

Mac93

MustangSBA, did you get your speedo recalibrated? You might actually be going much slower than that.

titanium92

Yes I agree....that doesn't compute....according to some of the gear ratio calculators your running around 66mph @ 2100RPM's

92hatchLX

Wow, my AOD with 3.90 gears is turning 2600 rpms at 75.

titanium92

Wow, my AOD with 3.90 gears is turning 2600 rpms at 75.

Yeah that sounds about right ........ It was a pretty good guess that I made earlier about the 3.73's running around 2600 @75 mph

FordMustangXBA

I don't remember if the speedo gear was ever put in actually...I'll have to have one of my friends keep pace with me some time...Or find one of those "Your speed is" things that the police department uses. I'm definitely going pretty fast though, as in passing most people. Either that or when I bought the car the guy was full of crap and it still has stock gears. In that case...I'm actually kind of happy because the car is fast as **** now, and knowing that I can make it pull alot harder makes me happy, lol.

Mustangkiler

2500 at 60 with 410s

Mustangkiler

there will be no point in getting 355s you will wish u had a bigger gear, and the rpm dif between that and 373 on the highway will be like one hundred only

Rice_Killa

about 2700 at 75 with 4.10s