RODRIGUEZ

Yeah, 3.55's sounds about rite for you, I agree with you that you won't feel much of a difference going from 4.10's to 3.73's

domindart

would you feel a difference going from 2.73 to 3.55? I think I have 2.73 I can travel on the highway at 85mph at 2500rpms or around there

projectresto83

Yes you would feel a difference.

domindart

think I should do it?

94StinkinLincoln

dont fear the gear!

projectresto83

DO IT DO IT DO IT.

1990lxhatch

3900? Wiskey Tango Foxtrot are you even in 5th gear?

I'd suggest you are going MUCH faster than 70mph ..... but with the stock speedo gear and 4.10's you would normally read a faster than actual speed....... so I don't know what the hell you got going on there...Did someone install a speedo gear for 4.30's or 4.50's or something?

Granted my 5th is a tenth or two shorter in the tremec..... but with a 245/45/17 and 4.10's I run ~2700 at 70mph. Average 18mpg @ 70mph.

if you run 3900RPM at 70mph in 5th gear...... the 4.10's are not your problem.... Your tach or your speedo is lying to you.


4.10s are fantastic weekend warrior street car gears. Only problem is you may run out of gear in the 1/4 if you run a power adder or loose traction in the 60'. If you go through the traps in OD you are doing it wrong!

Love my 4.10's but I run a 100 shot and I eventually want to go boosted...... 3.73's will be my replacement. 3.90's are also a really good N/A gear for these cars. Plus, I don't like to shift super hard/fast so if you don't drive your car right you can actually end up with slower times using taller gears.

oh, and you WILL notice a significant difference between 4.10 and 3.73.

1987notchback

ah NO i am in fifth and no i am not going by my speedo i am not an idiot, i had a car pace me to check and yes it was at 70 and it is a stock T-5 with 4:10's love your 4:10's all you want mine are goin in the trash thanks captain obvious anymore usless stuff you can tell me maybe you can explain to me how to check my oil next!

domindart

1990lxhatch, do you think 3.55 is a good gear for a almost stock stang? I have 2.73 now I think. how do you check your gearing?

I want good highway, but I want good take off too. the car has pwer, it just needs something to give it better climb.

I had a friend who had 3.73 in his car and I think it was just, in my opinon, too much rev on the highway for what I want..

heres another question: does having a higher gear put more strain on the internals? I would guess it does put some more strain on the internals, but just how much, how high should I go on my car, a 111k car?

94StinkinLincoln

Aode Ratios: 2.40 1.47 1.00 .67 N/A
TKO600 Ratios: 2.87 1.89 1.28 1.00 0.64
(^i have both of these)
and the stock T5 3.35 1.99 1.33 1.00 0.68

assuming a 26.04 in tire - 255/50/16 MT ET Street (774.89 revs per mile)

All measured in OD of the trans.
AODE
----------55---70----75
3.27's: 1556 1981 2122
3.55's: 1690 2150 2304
3.73's: 1775 2259 2421
3.90's: 1856 2362 2531
4.10's: 1951 2483 2661
4.30's: 2046 2605 2791
4.56's: 2170 2762 2959


TKO600
----------55---70----75
3.27's: 1487 1892 2027
3.55's: 1614 2054 2201
3.73's: 1696 2158 2312
3.90's: 1773 2257 2418
4.10's: 1864 2372 2542
4.30's: 1955 2488 2666
4.56's: 2073 2638 2827

T5
----------55---70----75
3.27's: 1579 2010 2154
3.55's: 1715 2182 2338
3.73's: 1802 2293 2457
3.90's: 1884 2398 2569
4.10's: 1980 2520 2701
4.30's: 2077 2643 2832
4.56's: 2203 2803 3004