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  1. 09 GT rear end upgrade

    2005-2010 Mustang GT Tech
    Hey guys, I am taking my stock rear end (3.31) and upgrading the diff and ring an pinion to the Ford Racing 3.73 gear set. i am also replacing the bearings out with the Ford Racing Kit which uses the better pinion bearing... The current factory pinion shim is .25 and am using it to get a gear...
  2. 2000 Mustang GT 3.73 gears ABS issue

    4.6L Tech
    2000 GT 4.6 question. We recently purchased this car. It appears the rear was changed and I am guessing by the 7mph the speedo is off, it probably now has 3.73 gears. ABS module was not communicating, and we sent it out to be fixed, which was a success. Trouble code stored in PCM for wrong...
  3. 4.10's or 3.73's

    2005-2010 V6 Mustang Tech
    I know this has been asked A LOT but.... Ok i bought a t-lock a couple of days ago and i would've bought the gears but i'm still unsure... I have a 2006 V6 and cant decide on either the 4.10's or 3.73's! I know if i drive highway more (which i will be) i should get 3.73's but i just wanted to...
  4. Are v6/v8 rear gears compatible??

    2005-2010 Mustang GT Tech
    rant.gifI have a 2010 Mustang Gt.. long story short, the dealership pretty much f'd me and charged me 130 over my original quote soapbox.gif AND put in 3.73s instead of the 4.10s i wanted, and because I drove 200m on them, I can't return em.. So my perdicament is, is that I have a set of 3.73s...
  5. 2010 Mustang GT, 3.73 rear gear install??

    2005-2010 Mustang GT Tech
    So as you've read, I'm wanting some rear gears very soon. I've got a couple questions on em though.. I know i'll need the new 8.8" rear gear pinion bearing. But what about the "Traction-LOK Rebuild Kit w/ Carbon Discs" or the "Gear Install Kit" the only reason I know they'll come into play is...
  6. Ford Racing Gears 3.73 or 4.10's

    2005-2010 Mustang Talk
    I am looking to buy some steeper gears for my 08 GT, and am looking for which ones will be best, which gears do what exactly ? i want to purchase either 3.73 gears or 4.10 gears .
  7. Saying goodbye to the 2.73's...

    2011 - 2014 V6 Mustang Tech
    But before I do, thought I'd "poll the audience" on what ratio might be better for an automatic (I know, I know...). 3.73 is the popular choice, but the 3.55 gears are what I'm leaning towards, mainly because I'm anticipating CFM's turbo. I will miss 32mpg on the highway, but not near as much...
  8. 12 second fox body with 300 whp and 3.73?

    5.0L Tech
    Hello I am curious as to what a 89 mustang would be able to do with 300 whp and 3.73 gears with a 5 speed tranny along with some drag radials. I am looking at an 89 lx right now and I'm just think ing about the future. How much money would it cost to get 300 whp with keeping the fuel injection...
  9. Suggested price to rebuild rear end and install gears?

    5.0L Talk
    Hey all, I have a 1984 mustang gt and currently am still using the puny 7.5 rear end. I pulled an 8.8 from out of the junkyard the other day and want to have some 3.73s installed and have it completely rebuilt. I've called a few local shops and the cheapest I've found is $600 if I supply the...
  10. what gears would best suit my car?

    5.0L Tech
    hi. i have a 1991 mustang gt. right now it has close to 350hp. i have heard that adding 4.10 gears with this kind of power is ill advised. right now my car has the regular 2.73s. would you guys recommend 4.10s? i hear they just make your car really aggressive and thats what i am looking for. i...
  11. Custom Tune Question

    2011 - 2014 Mustang GT Tech
    So i found a place that will install BBK long tube headers and catted X pipe. and 3.73's, all parts and labor for right about $2500. Good Price? for another $250 they will also custom tune and Dyno. Question is, should i do their custom tune? or would an emailed tune for the SCT tuner do the...
  12. 4.30s ?? i need first hand experience .... not just opinions please

    4.6L Tech
    I had a bassani x pipe ordered for my 04 gt but rpmoutlet decided to cancel my order after it was put on back order!! So It gave me a chance to consider othr mods b/c I am afraid of loosing low end power if I change out my mid pipe....anyways im looking at rear end gears as a option. I have...
  13. 2007 v6 3.73 8.8" Rear End Help

    2005-2010 V6 Mustang Tech
    So through research I found out I want to swap my stock rear end (3.31 7.5 inch) to the 3.73 8.8" rear end. I will probably give it to my mechanic to do it. Do i just need the gears? Also i want to make my differential limited slip (to stop the one wheel peel), what else do i need to do to...
  14. 2.73 to 3.73 gear ratio, manual 2011 mustang v6

    2011 - 2014 V6 Mustang Tech
    I have about 1000 miles on my brand new stang with the stock 2.73s and i'm considering upgrading to some 3.73s. This is my first manual transmission car, and I'm not sure how i will be able to handle the 3.73s because from my understanding the car is much more difficult to control. If anyone has...
  15. Gear Whine Help, Thanks!

    2.3L Tech
    Hey all, I noticed I have a bit of gear whine. Most heard on a hard acceleration, or downshifting/engine braking. I don't know if it started recently or if I can just hear better now that I'm paying more attention/have an idea whats going on with my car. She's givin' me problems but I love...
  16. BAMA Tune for a Manual with Dual Exhaust?

    2005-2010 V6 Mustang Tech
    Just wondering if anybody out there has gotten a BAMA tune, 91 or 87 octane, for their 4.0 with just dual exhaust? and if so how much of an improvement in power/ throttle response did you see? I'm thinking about getting a tuner and maybe 3.73s..? Just want to be sure. Thanks :bounce2:
  17. Rear Gear Install

    4.6L Tech
    I am thinking about getting lower rear gears installed. How much of a difference can you tell with them? Please respond only if you own/experienced them. Thanks!
  18. 2011 Mustang GT 3.31 to 3.73 OR SCT/DiabloSports chip?

    2011 - 2014 Mustang GT Tech
    Hello: I apologize in advance if this has already been answered - Unfortunately what I got sold was not the vehicle I was under the impression of buying. I was being explained the benefits of 3.31 vs 3.73 by my salesman and I should have checked the sticker before trusting him. Of course...
  19. 1998 mustang gt conv auto: rear gears install

    4.6L Tech
    i wanted to change the rear gears to 3.73 ratio ford racing parts. But i want to know what other parts/items/kits i "also" need to purchase, besides the gears. i want to buy the parts and take them to my mechanic for installation. thanks!
  20. 2003 Mustang GT gear questions

    4.6L Tech
    I recently posted about my warranty from carmax thus negating any plans for putting aftermarket parts in and im really anxious to add some more power to my car. The 3.73 gears i think is the right number i read about add more acceleration, but do they take away from the top speed? also how do...