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Discussing 3:73 Gear change in the Modular Mustangs Forum. Yeah, I'm a newbie! Okay, after doing a little research, I have decided to ...

       

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Old March 24th, 2007, 12:53 AM   #1
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3:73 Gear change


Yeah, I'm a newbie!

Okay, after doing a little research, I have decided to swap gears in my 2000 GT to 3:73s. I have a 5 speed, mods so far are BBK CAI, BBK 75mm Throttle Body, Trick Flow upper plenum, long tube headers, off road x-pipe and flowmaster 40 cat back. The question I have is this: how difficult is the swap? I have a fair amount of intelligence and I know how to use a wrench. What all is involved in this swap?
 
Old March 24th, 2007, 04:43 AM   #2
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def go with 4.10 also. but anyways, this is a mod that is best left to a pro to do uinless you knwo exactly what your doing. if your off just a little bit, the gears will whine and wont last as long
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Old March 24th, 2007, 10:10 PM   #3
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I was told that if I bought 3.73' or 4.10's that my first and second gear would be usless.. why is that?
 
Old March 24th, 2007, 11:25 PM   #4
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definitely get 3.37s there a lot more streetable, i like them the most.. and their not bad to swap out if you know something about the process
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Old March 24th, 2007, 11:44 PM   #5
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i also prefer 3.73s. brad03svt i wouldnt bother changin the gears in your car.you already have 3.55s so to change to a 3.73 wouldnt be worth it in my opinion
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Old March 25th, 2007, 04:42 PM   #6
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Okay, so I should let a shop do it? Anyone here ever done it? I've rebuilt an engine, so I know a little about tolerances and such.
 
Old March 25th, 2007, 06:38 PM   #7
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I just had 3.73's put in on Friday. I LOVE THEM!!!! imo, it's a perfect gear ratio. i would have a shop do it for a couple hundred bucks. I pd. $300. A shop will have all the right tools and can probably get it done in a couple of hours. get it done right by someone who really knows what they are doing.
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Old March 25th, 2007, 07:14 PM   #8
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Okay, I will defer to letting a shop do it. I have a couple of friends that have or had shops, so I can probably get it done fairly inexpensively. Thanks!
 
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