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Discussion Starter · #1 ·
I just went to B&D racing to find out how much it would cost to get 4.10s and t-lok installed. Does $900 sound too high for gears, t-lok, install kit, install and the comp to fix the speedo. I know that i should get 4.10s because i have an auto but would it be better to get an auburn diff or the fms. Would the auburn diff void my warrenty? What do i need to recalibrate the speedo and where can i get it?
 

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What...do you guys have something that plugs into your diffs? My car does and my speedo has never been off no matter what gears I got so either my car already adjusts for it or something is a little weird here. If I were you I would buy the diff. used because it will still work the same and install it myself if you know how. My car is genereally a bit more expensive for crap than mustangs and I still got a used one for $300. You have to look around though, the 3.38's for my car are over $1000 for a used one. I'm sure you can get a couple 100 off the price just by going used.
 

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232stang said:
if its 900 with all the components plus installation plus the chip then its a hell of a good deal
That's one good deal man, I'd hit it if I was looking for gears/t-lock.
 

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i was quoted $950 for the auburn rear, and the FMS 4.10 gear installed. should be getting installed next week :D
 

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red herring said:
What...do you guys have something that plugs into your diffs? My car does and my speedo has never been off no matter what gears I got so either my car already adjusts for it or something is a little weird here. If I were you I would buy the diff. used because it will still work the same and install it myself if you know how. My car is genereally a bit more expensive for crap than mustangs and I still got a used one for $300. You have to look around though, the 3.38's for my car are over $1000 for a used one. I'm sure you can get a couple 100 off the price just by going used.
We have a speed limiter on our car.

4.10 Gears knock the speed limiter down to 74 mph top speed without a chip to remove it
 

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nope chip was $350
got it from Jason at VMP :good: :good: that guy kicks ass :headbang: should have it thursday :cool:
 

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01mineralgrey6 said:
nope chip was $350
got it from Jason at VMP :good: :good: that guy kicks ass :headbang: should have it thursday :cool:
exactly why this guys price kicks ass it already includes a speedcal or chip
 

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Discussion Starter · #12 ·
Now i know i got a good deal but i found another shop that sells 8.8 rear ends with 3.73 already installed for 800 just parts. I want to find out how much to get installed. Do i need a speedcal if i change from a 7.5 to a 8.8 with 3.73s?
 

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Wait it drops the limit down to 74? Well what's our car accelerate like above that with 4.10's in?

Is it slowwwww??
 

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soon2bfastr232 said:
Now i know i got a good deal but i found another shop that sells 8.8 rear ends with 3.73 already installed for 800 just parts. I want to find out how much to get installed. Do i need a speedcal if i change from a 7.5 to a 8.8 with 3.73s?
unless you are planning to hit over 350 hp you wont need an 8.8
but if you change youre gears you WILL need a speedcal or chip
 

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Discussion Starter · #15 ·
Ive decided to stay with the 7.5 and do 4.10s and a t-lok. Is it possible to get the diablosport predator or deltachip to fix the speed limiter? Y not get more power and fix the speed limiter.
 
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