Which gears to get?

Discussion in 'Fox 5.0 Mustang Tech' started by TheFleshRocket, Jan 13, 2004.


  1. TheFleshRocket

    TheFleshRocket Founding Member

    Joined:
    Jul 10, 2002
    Messages:
    208
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Southern Ill Annoy
    The numbers I posted are based off the corral.net gear calculator and jive with the RPM and speed readings I've noticed while driving my own car. I can't speak for your car, but they work for mine.

    Keep in mind that corral.net lists several different transmissions, so you may not have the same gear ratios as I do.
    #61
  2. Sevan

    Sevan Founding Member

    Joined:
    Dec 4, 2001
    Messages:
    558
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    IL
    Has anyone here used the 3.90 gear? Any cons and pros in running a 3.90?
    #62
  3. Stump1000

    Stump1000 New Member

    Joined:
    Apr 5, 2003
    Messages:
    496
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Morristown Tn
    If your **** is weak and your gonna be on the track.. use 4.10's. If its not extremly weak use 3.73's. If your not gonna be on the track and just play on the road use 3.55's. Lower is gonna be faster, until your too fast
    #63
  4. willys1

    willys1 Banned

    Joined:
    Dec 2, 2003
    Messages:
    2,557
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    New Jersey
    Man,I wish my threads had all these reply's!!All you need is "one"rule of thumb,DONT FEAR THE GEAR !
    #64
  5. White03Mach

    White03Mach Founding Member

    Joined:
    Apr 24, 2002
    Messages:
    360
    Likes Received:
    0
    Trophy Points:
    0
    Yes, dont fear the gear.... but you need to consider the application. Too much gear is possible, too. If you go too high,you will lose speed. Higher gears do better in higher revving motors and such, like the newer 4v modular motors. If you go too high with not enough power, you will breeze right through the power band and there will be no time for the motor to build up torque. This will slow you down. Tomorrow at work the 3.73s are going into my 5.0.... i love the feel of 4.10s, but traction is a problem and i do lots of interstate driving around 80 mph, etc. And if you will be going with a power adder definitely go 3.73. It is an all around good gear. Good luck bro
    #65
  6. 90lxwhite

    90lxwhite Mustang Master

    Joined:
    Aug 25, 2011
    Messages:
    2,162
    Likes Received:
    259
    Trophy Points:
    104
    Location:
    Between the Red and Rio
    Everyone's a big fan of the 3.73's... I wasn't as impressed really. 1st gear ran out of rpms before making any speed and it felt like I needed another gear while on the hwy in 5th. Leisure cruises around town was ok though.
    #66
  7. NIKwoaC

    NIKwoaC 中國製造

    Joined:
    Nov 1, 2006
    Messages:
    8,439
    Likes Received:
    698
    Trophy Points:
    164
    Location:
    Chengdu Province
    Nice job reviving a 8 year old thread. :p

    3.73s will feel weird at first, especially if you're coming from the stock 2.73s. You'll get used to it though, and just keep in mind that you need the gear to be competitive at the track.
    #67
    88LX5.Oh likes this.
  8. Old Skooler

    Old Skooler Founding Member

    Joined:
    Feb 28, 2012
    Messages:
    213
    Likes Received:
    17
    Trophy Points:
    29
    IMO On the street I think 410's are great, I also have a carb motor that revs pretty high. If I'm on the highway it's for 10 mins at most. 373's is a gd compromise, I had 355's and thought they we're pointless even while spraying it, daily driving was just boring. I've had 12 mustangs over 18 years and if I did 150 twice thats a lot, I wouldn't let top speed factor in on my decision.
    #68
    k00ksta likes this.
  9. 90lxwhite

    90lxwhite Mustang Master

    Joined:
    Aug 25, 2011
    Messages:
    2,162
    Likes Received:
    259
    Trophy Points:
    104
    Location:
    Between the Red and Rio
    Do what I can ;)
    #69
  10. k00ksta

    k00ksta Member

    Joined:
    May 14, 2007
    Messages:
    152
    Likes Received:
    0
    Trophy Points:
    17
    Location:
    Chicago
    Run 3.73's and be done with it thats my 2 cents :) ..
    #70
  11. 90lxwhite

    90lxwhite Mustang Master

    Joined:
    Aug 25, 2011
    Messages:
    2,162
    Likes Received:
    259
    Trophy Points:
    104
    Location:
    Between the Red and Rio
    I hear that w/ the 4.10's in aod you can only go about 100 mph at WOT w/ before it goes into od and you know in stock form it won't let you run wot in od
    #71
  12. jcgafford

    jcgafford Well-Known Member

    Joined:
    Jan 8, 2012
    Messages:
    1,099
    Likes Received:
    98
    Trophy Points:
    59
    Location:
    Adrian, MI
    My aod vert has 2.73 gears and needs something. I believe the option was 3.27 gears but am considering 3.55 or 3.73. Never going to race at the strip, but don't want some ricer at a stop sign to blow my doors off either. Not looking at going 150mph either. Probably 75% city driving with a few summer trips of 200 miles highway driving to the lake. opinions?
    #72
  13. 90lxwhite

    90lxwhite Mustang Master

    Joined:
    Aug 25, 2011
    Messages:
    2,162
    Likes Received:
    259
    Trophy Points:
    104
    Location:
    Between the Red and Rio
    half of the people will say 3.73 and the other half will say 4.10. I haven't driven an aod with anything but the 2.73 but my father has a '95 gt with the t-5 with the 3.73's in it. They (3.73's) are ok I suppose but it 1st gear redlines before it's making any speed and when it is in 5th gear on the hwy it feels like it needs to shift to a 6th gear if there was one. He is thinking about going to 3.27's and I think I'll take the 3.73's off his hands, what the hell.. But lemme say this, the gears were ok, maybe made it "quicker" but I dunno. Just don't have your hopes up thinking that the gears are make you run like you added 100 hp or something, it'll be bout as fast as it is now.
    #73
  14. A5literMan

    A5literMan Mustang Master

    Joined:
    Jul 31, 2011
    Messages:
    1,192
    Likes Received:
    301
    Trophy Points:
    94
    Location:
    Illinois
    Usually going from 2.73 to 3.73s are worth about .3-.4 tenths in the 1/4 with a T5. I picked up a .1-.13 just switching from 3.55s
    #74
  15. steves238stang

    steves238stang New Member

    Joined:
    Mar 24, 2009
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    1
    You know just to make a point, since when do we want our OVERDRIVE gear to pull hard when we have 4 others? Just saying. And you want 3.73s you can friggin have mine I'd love to trade for 3.55s or higher.
    #75
  16. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor Admin Dude

    Joined:
    Jan 5, 1985
    Messages:
    19,822
    Showcase:
    58
    Albums:
    5
    Likes Received:
    2,451
    Trophy Points:
    174
    Location:
    Box behind Walmart
    I know, right?
    ...and then he continues. :lol:

    :tard:
    #76
  17. NIKwoaC

    NIKwoaC 中國製造

    Joined:
    Nov 1, 2006
    Messages:
    8,439
    Likes Received:
    698
    Trophy Points:
    164
    Location:
    Chengdu Province
    All aboard!
    #77
  18. Gearbanger 101

    Gearbanger 101 Straight Outta Locash Super Mod

    Joined:
    Aug 11, 2002
    Messages:
    14,183
    Likes Received:
    830
    Trophy Points:
    164
    Location:
    Ontario, Canada
    In all seriousness though. Anybody running 3.27's in a 5-speed car? I've got a set of 3.73's sitting on my shelf, ready to go, but am a little Leary. Not only do I not want my highway mileage drastically effected, but I'm not so sure I like the idea of just zipping through the sweet spot of my powerband. These 5.0L's were designed to be torquey. Flying through the rev range with a set of higher numerical gears doesn't exactly take full advantage of that?

    Especially if one had some form of power adder in the future?

    I had 3.73's installed in my cougar and quite frankly I liked my stock 3.27's better. They made much better use of the power band and saved me a little fuel economy in the process.
    #78
  19. easystang

    easystang New Member

    Joined:
    Jun 20, 2011
    Messages:
    21
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Oregon
    I went from 3.27's to 3.73's and I noticed a nice gain. I have a 93lx with 5sp. I can also shift into 5th gear a lot more around town saving gas. Also when I am on the freeway I don't have to down shift to pass...just floor it and go :)
    #79
  20. NIKwoaC

    NIKwoaC 中國製造

    Joined:
    Nov 1, 2006
    Messages:
    8,439
    Likes Received:
    698
    Trophy Points:
    164
    Location:
    Chengdu Province
    It's all about multiplication of torque, man! As far as fuel economy goes, it's not like these are Honda Civics. I always think it's funny when people are overly concerned with MPGs in a 20-something year old car that's basically a gasoline dumpster and most people tune to run on premium anyway. Also, 3.73s still are "tall" enough even in a 500 HP car to not "run out of gear" in the 1/4, so I guess I wouldn't worry too much about that either.
    #80

Share This Page