Gear swap in a 99 Cobra

I run 4.10's and get 23MPG with almost all bolt ons. You will be at 3000RPM @ 80MPH.

I love my 4.10s and wish I had 4.30s...I would never consider 3.73s but if I felt like I was going to be going 80+mph all the time I might consider 3.90s.

I just noticed while filling up earlier, I was around 205 miles on ruffly 3/4 of a tank of gas. That was mostly playing around too. I did just get my offroad pipe two weeks ago

Don't Fear The Gear.

Matter of fact if I had a solid axle I would have 4.56's.

Damn IRS

i had 4.56s with my 99 IRS cobra and averaged about 18mpg depending on how many track passes i had

I'd do 4:56 with a six speed, anybody got an extra one?

I've got a set of 4:30's f/s if anyone's interested, gas mileage was too rough for me lol

I have 4.10's in my 99 cobra. Biggest bang for your buck you can do.

Do you guys think you will have any problems with the rear end on a 99 with 410 or higher?

The Rear End itself will not have a problem w/ 4:10's or higher it just the wheel hop that sucks major A**. The wheel hop is what can really mess up the IRS.

And.. is it just me or am I the only one that gets horrable wheel hop when shifting under "racing" circumstances??

I have 3.73 in mine, good all around gear. I have blower too if you gonna do power adder i wouldnt go over 3.73, then its like a rodeo ride with your mustang trying to buck you off It all depends what your doing with the car, if its street strip only then go higher. I like to do track days around Portland International Raceway an sometimes do road trips so i couldnt see going over 3.73, or 3.90. But looks like am the only one on thread gonna tell you stay under 3.90 Whatever you do is still gonna be beter than 3.27

And.. is it just me or am I the only one that gets horrable wheel hop when shifting under "racing" circumstances??

I put H&r 800 lb springs and drop tire pressure to about 18 psi, makes wheel hop a bit more manageable

I do not have the 410 gears yet installed to report on, but currently with the stock 327's, I do not have too too bad of wheel hop, I believe all I have to counter that is hypercoil lowering springs, subframe connectors, and some good old bfg tires Seems like if you spin the tires alot while accelerating, the tires either just spin or grip hard, but it is when you do not give it enough throttle that mine starts to buck. I think its different with everyone.

dman, 410s from what I hear are not at all extreme in a high winding cobra. I never race my car and I am putting them in. I do not drive on the highway much but if I have to, the cobra's prefer to cruise close to 3k, and also it is actually better for both your motor and your transmission to be at higher rpms on a car like this. Every performance shop has told me that, and their reason is basically because if you go to accelerate from say 2k or below, you are putting much more strain on the trans and motor than say if you start at around 2500. But I cant say for sure, I ll be sure to post back once they gears are installed, but they better work out haha for my sake but if your worried, go with 373. They are a decent gear for any 4.6

i dont like the way 100+ feels with my 4.10s
anyone wanna swap a rear end differential case

About GNAA:
GNAA (GAY ****** ASSOCIATION OF AMERICA) is the first organization which gathers GAY ******S from all over America and abroad for one common goal - being GAY ******S.

Are you GAY?
Are you a ******?
Are you a GAY ******?

If you answered "Yes" to all of the above questions, then GNAA (GAY ****** ASSOCIATION OF AMERICA) might be exactly what you've been looking for!
Join GNAA (GAY ****** ASSOCIATION OF AMERICA) today, and enjoy all the benefits of being a full-time GNAA member.
GNAA (GAY ****** ASSOCIATION OF AMERICA) is the fastest-growing GAY ****** community with THOUSANDS of members all over United States of America and the World! You, too, can be a part of GNAA if you join today!

Why not? It's quick and easy - only 3 simple steps!

First, you have to obtain a copy of GAY******S FROM OUTER SPACE THE MOVIE and watch it. You can download the movie (~130mb) using BitTorrent.
Second, you need to succeed in posting a GNAA First Post on slashdot.org, a popular "news for trolls" website.
Third, you need to join the official GNAA irc channel #GNAA on irc.gnaa.us, and apply for membership.
Talk to one of the ops or any of the other members in the channel to sign up today! Upon submitting your application, you will be required to submit links to your successful First Post, and you will be tested on your knowledge of GAY******S FROM OUTER SPACE.

If you are having trouble locating #GNAA, the official GAY ****** ASSOCIATION OF AMERICA irc channel, you might be on a wrong irc network. The correct network is ******NET, and you can connect to irc.gnaa.us as our official server. Follow this link if you are using an irc client such as mIRC.

If you have mod points and would like to support GNAA, please moderate this post up.

Code:

.________________________________________________.
| ______________________________________._a,____ | Press contact:
| _______a_._______a_______aj#0s_____aWY!400.___ | Gary Niger
| __ad#7!!*P____a.d#0a____#!-_#0i___.#!__W#0#___ | gary_niger@gnaa.us
| _j#'_.00#,___4#dP_"#,__j#,__0#Wi___*00P!_"#L,_ | GNAA Corporate Headquarters
| _"#ga#9!01___"#01__40,_"4Lj#!_4#g_________"01_ | 143 Rolloffle Avenue
| ________"#,___*@`__-N#____`___-!^_____________ | Tarzana, California 91356
| _________#1__________?________________________ |
| _________j1___________________________________ | All other inquiries:
| ____a,___jk_GAY_******_ASSOCIATION_OF_AMERICA_ | Enid Indian
| ____!4yaa#l___________________________________ | enid_indian@gnaa.us
| ______-"!^____________________________________ | GNAA World Headquarters
` _______________________________________________' 160-0023 Japan Tokyo-to Shinjuku-ku Nishi-Shinjuku 3-20-2

Copyright (c) 2003-2004 Gay ****** Association of America

why dont you like the way it feels. Its ok to be at or above 3k you know. That is what they are meant to do