3:73 Gear change

Draftmaster · March 24th, 2007, 12:53 AM

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?

Drgnracin72 · March 24th, 2007, 04:43 AM

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

brad03svt · March 24th, 2007, 10:10 PM

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?

FastBack71 · March 24th, 2007, 11:25 PM

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

sonicblue · March 24th, 2007, 11:44 PM

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

Draftmaster · March 25th, 2007, 04:42 PM

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.

02steedagt · March 25th, 2007, 06:38 PM

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.

Draftmaster · March 25th, 2007, 07:14 PM

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!

March 24th, 2007, 12:53 AM	#1
Draftmaster Newbie Join Date: Feb 2007 Location: Valdosta, GA Posts: 7 iTrader: 0 reviews	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?

March 24th, 2007, 04:43 AM	#2
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,635 iTrader: 2 reviews	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 __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

March 24th, 2007, 11:25 PM	#4
FastBack71 Enthusiast Join Date: Dec 2006 Posts: 587 iTrader: 0 reviews	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 __________________ My friends used to wonder Why i joined the air force. Now they wonder why they didn't.

March 24th, 2007, 11:44 PM	#5
sonicblue Hardcore Enthusiast 1990 GT Join Date: Aug 2006 Location: dalzell, south carolina Posts: 1,436 iTrader: 0 reviews	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 __________________ 1990 5.0 getting all fixed up for next season 2004 mustang gt 520rwhp, 491 trq sold

March 25th, 2007, 06:38 PM	#7
02steedagt Enthusiast Join Date: Jan 2007 Location: Solomons, MD Posts: 634 iTrader: 0 reviews	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. __________________ "America is all about speed. Hot, nasty, bad ass speed." Eleanor Roosevelt, 1936

March 24th, 2007, 10:10 PM	#3
brad03svt Newbie Join Date: Feb 2007 Location: San Antonio Posts: 42 iTrader: 0 reviews	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?

March 25th, 2007, 04:42 PM	#6
Draftmaster Newbie Join Date: Feb 2007 Location: Valdosta, GA Posts: 7 iTrader: 0 reviews	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.

March 25th, 2007, 07:14 PM	#8
Draftmaster Newbie Join Date: Feb 2007 Location: Valdosta, GA Posts: 7 iTrader: 0 reviews	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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