Slimboyfatty

I got a 94 gt. I had a ASE certified tech tell me to go with 4.10s and nothing else even with it being my daily driver he said on highway ill be pushing 2300 to 2400 rpms @ 70mph or so. I had other people in gear posts saying that a 4.10 is too much and to stick with 3.73. I have a 5 speed its not an auto what would some of you mustang pros think because as much as the tech might know nothing compares to first hand experience. Remember it is my DD so i dont want to be pulling ridiculous RPMs at highway speeds. Also I heard 4.10s will overheat my tranny. Just wanted to get some input. Thanks in advanced.

5.0stanger

I have 3.73's and it is a good highway gear. I run around 2800 at 80mph.

Curlytop

I have a 95gt with alot of goodies. I'm all natural 302 with a top end package. I have 3.55 in the rearend and they work wonderful. Also mine is a five speed too. My car launches great and still have plenty of gear left when i'm on the highway. I have a cousin who has 3.73's andwish he would have went with 3.55 also. He has the trick flow top end package on his 93lx. First gear on his stang is so short you might as well start out in second. (lol) Anyways, if its a DD go with the 3.55. If it was a weekend car I would say the 3.73 and save on gas.[X(]

TTGreenSN95

I have a 1994 gt I went with 373 got a buddy whos got a 2003 roush who went with 373 we both would go 4.11 if we had to do it agian we both have 5 spd trannys just what we would have done the 373 is nice but it just seems the 411 would have been so much better i still cant use 5th gear around town.So im thinking of going 390 or 411 gear nice mix of gears maybe itll be just bout right..???..????

ZachW04Stang

I have 4.10's with my car, get 22mpg still highway with my mile hci and 4.10's. At 70mph with a 26in tire I'm at about 2600rpm which really isn't that high.

1fastzook

I had 3.73's and switched to 4.10's on a 5spdaily driverand i would never go back to 3.73's. At 70mphim @ 2500rpm.

PJB

A guy I know has 4.10's with a 5 speed and he says first gear is useless and he only has it in first for a few seconds.
His car is blown though.

AdderMk2

your ASE certified tech is a friggin idiot.

and just because he has a certification, doesnt mean ****... any ******* can pass a test, but it takes knowledge and a brain to have a clue about proper drivetrain operation.

Slimboyfatty

which is exactly why I came to people like you adder that know their **** on the mustangs new and old. I would love to have your input on what to do in a DD 5speed. Hope to get a reply soon

AdderMk2

with 4.10 gears, and a stock diameter tire (25.6") you would turn between 2600-2800 RPM's at 70-75mph.. not 2300-2400

I would personally never push DD 5 speed past 3.73's. ONLY 4.10's if you dragrace the ***** out of the car..

but if you use it for around town commuting and the OCCASIONAL jaunt on the gas.. 3.55 would be perfect for ya