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Old 08-29-2013, 05:29 PM   #1
David Edward Thompson

 
Join Date: Mar 2012
Vehicle: 1997, ford, mustang
Location: illinois
Posts: 20
@DavidT97Mustang REaPeRofDeATh16
Default how to fix my speedometer off badly

ok so i just recently did a engine and transmission swap on my mustang gt. i had a 97 gt and i installed 3.73 gears and it threw my speed off by about 10mph no big deal i knew i could buy a different transmission gear and it would fix that but i let my cousin borrow my car for month while i was out of town and he blew my engine so i did a engine swap and i put a 99 gt engine and transmission in my 97 body. well after finishing and taking a test drive now my speed is off horribly i will be in first gear doing 80 shift into second and now it says im doing 150mph so its not even close and i know you can not buy a transmission gear since that changed in the 99 but american muscle makes something but it cost $140 but everybody is complaining it doesnt work so im not going to buy it and waste money. so does anybody know what i can do to fix this and get my speed back to normal or has anybody bought this from american muscle and it actually did work.
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Old 08-30-2013, 07:46 AM   #2
castorino220

 
Join Date: Jul 2013
Vehicle: 2001, Mustang GT
Location: Florida
Posts: 24
Default

what does American muscle sell that everyone says does not work? pretty sure you need to get a hand held programmer. American muscle has the bama tuners, and i have never heard anything bad. hope this helps.
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Old 09-03-2013, 10:15 AM   #3
portstangly23
 
Join Date: Jan 2013
Vehicle: 2002, Ford, Mustang GT Convertible
Location: ON
Posts: 37
Smile Programmer

Hey there. I got a speeding ticket because of my speedometer issues. I got the programmer from American Muscle and this fixed my speedo issues. Oh yeah, it also improved my car's performance.
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Old 09-03-2013, 10:15 AM
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gears, mphs, speedo recallibration, speedometer, speedometer problem

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