football7star21

Thanks for your concerns man, lol i know this much, i just installed my x pipe a few weeks ago, i just know next to nothin about trannys...

Nuke

Sounds like 3.31's if it's an auto; 3.55's if it's manual. Tough to say without exact RPM/speed values for a few different data points.

football7star21

well ill get more data this week for you, its real crappy out now, not about to go driving. I just want to know because i am thinking about getting gears and cams. Im not sure between 3.73s and 4.10s in the summer i drive highway alot and i dont want terrible gas mileage. also i hear with the 4.10s at higher speeds when you slam the gas that kick isnt there anymore with the down shift and it doesnt pull as strong as it does with lower gears(from a dig i hear its unbelievable though). idk how much truth there is to any of that but.. i cant decide...

Nuke

If you drive much highway, especially at speeds where your engine is turning over 2000 RPM, your fuel mileage will suffer. PM me with your e-mail and I'll forward some spreadhseets so you can see what RPM's you'll turn for given combinations of tire size and gear ratio.

MustangFirstCar

You might find this helpful

http://www.paladinmicro.com/AxleCalc001.htm

ski

You have 3.31's.
Trust me.

football7star21

I know we already went over this but i went out yesterday and at 70mph in 5th i was at 2050-2100 or so rpms and then i took over drive off and i was at 3000 rpms...just some more info if anyone cared...and you guys are right i checked a bunch of charts and i have to have 3.31s

I am thinking of going to 3.73s i think thats a good choice since i drive alot of highway