ben790450

Whats the stock compression ratio on a 99-04 gt? What spline axles come stock? Also do you think 4.56's will be too much or should i stick with the 4.10's im planning on. . .

jusnkris

i was lookin' at 4.56's today. im scared to do it though because i think it would lose its daily driver status.

ben790450

Yeah my thoughts exactly. Im building this car to be a weekend N/A warrior but i dont want to be crusing at 5000k in 5th on the freeway when i have to make trips to Denver every now and then. . .

ZW99GT

4.56's would be rediculous. Stock axles are 28 spline. You would need may or may not need to upgrade, depending of how much track time you will see.

geetee03

get 4.30's! i was contemplating between 4.10's and 4.30's.

yellowgtstang18

4.56s mite be to steep. What about 4.30s..??

mylongvictor

Ohhhhh gawd...... Too me 3.73s is as high as I would go.... But then again i'm what they would call....... "blown!" lol. Or at least she's in the process. Hey GeeTee.... You think you can pop on by THR and see how my baby is doing?

Dan04COBRA

If you were going with a full out drag car, gutted interior and some massive slicks I'd say 4.56 all the way, if not - limit yoursrlf to 4.30's.

ben790450

But seriously. 4.30's is not that much different than 4.10s i would think

jusnkris

just checked this site out. youd be at just about 2800 rpm at 70 mph on the highway. not really as bad as i thought. 4.10's are at 2516 rpm.




http://www.tchracing.com/tech/gearca...selectedgear=5