This is topic 4.10 gears!!? in forum Tech Talk at Northern California Ford Owners  .


To visit this topic, use this URL:
https://californiafords.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=6;t=005661

---

Posted by msj484 (Member # 1341) on :
 
hey all i am getting 4.10 gears. i have read alot of info and reviews about them. it looks like the accel is GREAT, and it will be at high rpm at about 75 mph, which will help me with my speeding tickets on the freeway. i want to get this done tomorrow. is this possible. where is there a shop in the bayarea that will do it, and where can i get gears the fast? thankx.
 

---

Posted by NorCalRydaz (Member # 3233) on :
 
Damn homie you want 4:10 gears. I have em and shit they suck. I waste hella gas!!!! When I'm on the freeway my shit is reving at like 3,000 rpm. I mean they are tight on the street but if it's your daily driver don't get em. Hella people say they have em but do they drive on the freeway? Probably not! It's up to you it's just what I think
 

---

Posted by msj484 (Member # 1341) on :
 
lol. now u r scaring me. yes i do driveo nthe freeway, and i race alot on the freeway, too. but the main reason is that i beat alot of people on the street. but then when i race like camaro's and 5.0's with mods. they beat me. i want something to make me just jump off the line. i hear 4.10's will do it. i was going to get 3.73's but i hear its not much difference. i also hear get 3.90's. i just want faster accel on the street, and not get killed at top end. i think 4'10's will b good for me, cuz i wont speed as much on the freewya also.
 

---

Posted by h8louzn (Member # 1075) on :
 
I have 4.10's with a t5-z and get 23 mpg!
I don't think that is bad at all!
 

---

Posted by msj484 (Member # 1341) on :
 
where can i find some fms 4.10 gears ASAP? please let me know. also is the any place in the eastbay that does good installs. thankx.
 

---

Posted by TRIX02GT (Member # 2844) on :
 
didn't we already discuss this
 

---

Posted by Norgs (Member # 649) on :
 

quote:

---

Originally posted by msj484:
where can i find some fms 4.10 gears ASAP? please let me know. also is the any place in the eastbay that does good installs. thankx.

---

trust me..dont get the 4.10s. they are a nightmare! ull hate it
 

---

Posted by Cobrar96 (Member # 3050) on :
 
4.10's work well with high reving cobra motor!! Dont worry about gas millege, the fun factor is satisfying with new gears and you wont be dissapointed.
 

---

Posted by kwikrob (Member # 835) on :
 
I know of 2 good shops. Rear End Specialties in Santa Clara or Differential Doctors in San Leandro. I have used them both and never had a problem yet.
 

---

Posted by The Nick (Member # 2244) on :
 
I've got 4.10s on a T5 and I love them.
 

---

Posted by 91sleeper (Member # 779) on :
 
Go with 3.90's!
 

---

Posted by sharkattack (Member # 645) on :
 
I had 4.10's in my 98 Cobra and I loved it. Drove to work 90 miles round trip a lot working graveyard (no traffic). My gas milage when not hard on the car was about 20-21 mpg. The gears rocked and were the best mod for the car. If you want good gas milage get a hybrid
 

---

Posted by NorCalRydaz (Member # 3233) on :
 
DON'T get 4:10's. I have them and the gas milege sucks! U don't get no 20 mpg!!!! I have a 89 Gt. Get 3:73's
 

---

Posted by cobraman_1994 (Member # 467) on :
 

quote:

---

Originally posted by NorCalRydaz:
DON'T get 4:10's. I have them and the gas milege sucks! U don't get no 20 mpg!!!! I have a 89 Gt. Get 3:73's

---

dont listen to this fool.
if you drive normal your mileage will be fine.
but if your that concerned with gas mileage, save your money and get a daily driver.
 

---

Posted by J's KING Cobra (Member # 2011) on :
 
I have 3.73's and they are great if you have to do ALOT of freeway driving. But I dont travel that far (24 miles) anymore....so im defintely gonna upgrade to 4.10's w/o a doubt. my friend has 4.30's in his Cobra and he doesnt even think its that bad and thats his daily driven car.
 

---

Posted by msj484 (Member # 1341) on :
 
hello all,

i do have a dailey driver that i use for work and stuff. the stang is just my toy. i listened to u guys and got my 4.10's today. the gears will be installed on friday. the shop told me that i cant go over 45 mph for 200 miles, lol wow. also he said that i couldnt realy race for 200 mile either. but i did get 4.10's now i gotta worry about getting my mph gauge working. i already have a chip in the car, cant i get it burned on there? if so where can i get it done. thank all.
 

---

Posted by 91sleeper (Member # 779) on :
 
I am assuming you had your gears installed in your 89' 5.0. To get your speedo calibrated to your 4.10's you have to buy a speedo gear. It goes in the tail shaft of your transmission. Go pick up a mustang mag and look at all the vendors inside. Many places sell them, I ended up ordering myne from Steeda.

When I had my gears installed I did about four or five heat cycles(drive for about ten minutes and let them heat up and then let them cool down)I was racing at Sacramento Raceway that night.
 

---

Posted by Eddie510 (Member # 2354) on :
 

quote:

---

Originally posted by 91sleeper:
I am assuming you had your gears installed in your 89' 5.0. To get your speedo calibrated to your 4.10's you have to buy a speedo gear. It goes in the tail shaft of your transmission. Go pick up a mustang mag and look at all the vendors inside. Many places sell them, I ended up ordering myne from Steeda.

When I had my gears installed I did about four or five heat cycles(drive for about ten minutes and let them heat up and then let them cool down)I was racing at Sacramento Raceway that night.

---

quote:

---

Originally posted by msj484:
hello,

i actually have a 2000 GT, i dont have a 89 n e more. but i know that i have to get a speedo gear, but i already got a chip in my car. cant i get it reburnt to instead of getting a speedo gear? also u said that you said that i can do 4 or 5 heat cycles. wut is that, cuz i will need to drive my car 40 miles back home that day. please help. thankx all.

---