Getting gears installed tomorrow...big difference?

gray87GT · 05-06-2001, 09:43 PM

Well, the big day is just about here..... tommorow I get the gears. I am going with FMS 3:73's, I think my stock ones are 2:73's. How much of a difference are they gonna make? Am I gonna be smiling all the way home, or am I gonna be pissed that I wasted my money? Thanks

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87 GT, BBK shorty's, offroad H-pipe, ASP pullies, 70mm T.B., Cobra intake, no smog pump, Windsor Jr irons, Comp cams 1.6 rollers, F303 cam, H.D. export W.P., Tri-Ax, FMS subframes, Battle boxes, SSM liftbars, FMS King Cobra clutch, mass-air conversion, 73mm C&L, 24lb injectors, BBK fuel pressure regulator, 3/8" no EGR spacer, and other piddly sh*t.

jimberg · 05-06-2001, 09:50 PM

You'll have to wait a while before you start smiling. You have to break them in first. You have to drive for about 10 miles and then let them cool for 30 minutes. Do this about 3 times. Then go for some long highway cruising.

After that, you can probably start getting on it a little. That's when the happiness will settle in. Getting used to the way you shift will take a while, though. It's been a week for me and I'm still trying to get used to them. I went with 3.55s.

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351W 89 Mustang GT Convertible

Bob · 05-06-2001, 09:54 PM

Difference between 2.73's and 3.73's??? You'll be grinnin' for a week! hehe

------------------
1985 Mustang GT

'85 GT 12.96@107.1 / '72 Mach1
Long list...check website!!
My Website

screaming_pas$enger88 · 05-06-2001, 10:01 PM

gears!!! good for you man! thats awesome! my first mustang had 2:73's.....those things go forever lol. im not sure what i want to put in mine. its an 88GT...im pretty sure they are 3:27's, but im not sure..... if they are, it would seem that 3:55's wouldnt make a difference....or would they?? ive been told 3:73's are the way to go.....

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AIM= OneQuickStang

Stang Runner · 05-06-2001, 10:10 PM

I have the 2.73 end and i just put a new trans in it. In 1st gear i can hit 47MPH at about 6100 RPMS I need a new rear end!!!

MAN you should see the Track you can lay!!!
Long but not to fast!

------------------
1988 LX 5.0 2.73 Gears, MAC Control arms, Steal Mounts, Mac Headers, X-pipe W\cats, Edelbrock cat\back, Ram air, K&N. MM Brake System Upgrade Package, MM Front Grip Package,

gray87GT · 05-06-2001, 10:31 PM

I really hope it's a big difference. That damn Fcam stole my low end torque, and I am praying to god these gears will gain a little back. I'll tell ya, it's gonna be AWFULL hard driving home like an old man...but I'll do it. I can't wait to go to the track and see what my car can do...never raced before.

isno302 · 05-07-2001, 09:33 AM

Just my opinion & experience,but when the smile wears off and time passes(with whats in your sig.),you may wish you went with the 4.10's. Oh,btw,say goodbye to lowend torq. loss. One more thing, that F303 cam is a very good choice.........Reggie

------------------
89GT,SVO 351 Sportsman,TFS Heads,Edilbrock RPM Per.,BG 750 Dbl,K&N 14x4 x-treem filter,FMS Z303,1 3\4 LT Mac's,Pulleys,MSD Dist,MSD Two step rev limiter,T-5,4.10's,Weld drag lites and Mcreary's G60-15 d.o.t's. SSM lift bar's,FMS HD uppers.Eibach drag launch kit with Lakewood 70\30's and 50\50's.
31 spline everything,Aluminum drive shaft and a bunch of other "Stuff".Best ET to date 12.18@114+ changing to a victor jr FMS M-9424-V351 and maybe C-4 or C-6 W\125 NOS
For full discription and p

91LXConv · 05-07-2001, 05:54 PM

Let me tell you, the gears are the best thing you can do for a car with 2.73s. I put on a set of MAC shorties the same day of the 3.73 install. Ear to ear grin as I first pulled hard with the new gears in while smelling the production coating on the headers burning off. A truly beautiful moment

------------------
1991 LX 5.0 Convertible
AOD w/ shift kit
Chassis:
Steeda cross-brace SFCs, Steeda G-load brace, Steeda strut-tower brace, 4-pt. Autopower roll-bar
Go-fast stuff: FMS 3.73s, K&N minus air silencer, MAC unequal length shorties and cat-backs, MAC underdrive pulleys, bad-ass Firehawk SZ50EP tires (225/55 16)

05-06-2001, 09:43 PM	#1
gray87GT Registered Member Join Date: Jan 2001 Location: Minnesota Posts: 177	Getting gears installed tomorrow...big difference? Well, the big day is just about here..... tommorow I get the gears. I am going with FMS 3:73's, I think my stock ones are 2:73's. How much of a difference are they gonna make? Am I gonna be smiling all the way home, or am I gonna be pissed that I wasted my money? Thanks ------------------ 87 GT, BBK shorty's, offroad H-pipe, ASP pullies, 70mm T.B., Cobra intake, no smog pump, Windsor Jr irons, Comp cams 1.6 rollers, F303 cam, H.D. export W.P., Tri-Ax, FMS subframes, Battle boxes, SSM liftbars, FMS King Cobra clutch, mass-air conversion, 73mm C&L, 24lb injectors, BBK fuel pressure regulator, 3/8" no EGR spacer, and other piddly sh*t.

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05-06-2001, 09:50 PM	#2
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	You'll have to wait a while before you start smiling. You have to break them in first. You have to drive for about 10 miles and then let them cool for 30 minutes. Do this about 3 times. Then go for some long highway cruising. After that, you can probably start getting on it a little. That's when the happiness will settle in. Getting used to the way you shift will take a while, though. It's been a week for me and I'm still trying to get used to them. I went with 3.55s. ------------------ 351W 89 Mustang GT Convertible

05-06-2001, 09:54 PM	#3
Bob "Old School Gearhead" Join Date: Oct 1998 Location: Peru, Illinois Posts: 617	Difference between 2.73's and 3.73's??? You'll be grinnin' for a week! hehe ------------------ 1985 Mustang GT '85 GT 12.96@107.1 / '72 Mach1 Long list...check website!! My Website

05-06-2001, 10:01 PM	#4
screaming_pas$enger88 Registered Member Join Date: Apr 2001 Location: Massachusetts Posts: 35	gears!!! good for you man! thats awesome! my first mustang had 2:73's.....those things go forever lol. im not sure what i want to put in mine. its an 88GT...im pretty sure they are 3:27's, but im not sure..... if they are, it would seem that 3:55's wouldnt make a difference....or would they?? ive been told 3:73's are the way to go..... ------------------ AIM= OneQuickStang

05-06-2001, 10:10 PM	#5
Stang Runner Registered Member Join Date: Jun 1999 Location: Walker, MI, USA Posts: 1,202	I have the 2.73 end and i just put a new trans in it. In 1st gear i can hit 47MPH at about 6100 RPMS I need a new rear end!!! MAN you should see the Track you can lay!!! Long but not to fast! ------------------ 1988 LX 5.0 2.73 Gears, MAC Control arms, Steal Mounts, Mac Headers, X-pipe W\cats, Edelbrock cat\back, Ram air, K&N. MM Brake System Upgrade Package, MM Front Grip Package,

05-06-2001, 10:31 PM	#6
gray87GT Registered Member Join Date: Jan 2001 Location: Minnesota Posts: 177	I really hope it's a big difference. That damn Fcam stole my low end torque, and I am praying to god these gears will gain a little back. I'll tell ya, it's gonna be AWFULL hard driving home like an old man...but I'll do it. I can't wait to go to the track and see what my car can do...never raced before.

05-07-2001, 09:33 AM	#7
isno302 Registered Member Join Date: Mar 2001 Location: UTICA,NY,USA Posts: 6	Just my opinion & experience,but when the smile wears off and time passes(with whats in your sig.),you may wish you went with the 4.10's. Oh,btw,say goodbye to lowend torq. loss. One more thing, that F303 cam is a very good choice.........Reggie ------------------ 89GT,SVO 351 Sportsman,TFS Heads,Edilbrock RPM Per.,BG 750 Dbl,K&N 14x4 x-treem filter,FMS Z303,1 3\4 LT Mac's,Pulleys,MSD Dist,MSD Two step rev limiter,T-5,4.10's,Weld drag lites and Mcreary's G60-15 d.o.t's. SSM lift bar's,FMS HD uppers.Eibach drag launch kit with Lakewood 70\30's and 50\50's. 31 spline everything,Aluminum drive shaft and a bunch of other "Stuff".Best ET to date 12.18@114+ changing to a victor jr FMS M-9424-V351 and maybe C-4 or C-6 W\125 NOS For full discription and p

05-07-2001, 05:54 PM	#8
91LXConv Registered Member Join Date: Feb 2001 Location: Pensacola, FL, USA Posts: 36	Let me tell you, the gears are the best thing you can do for a car with 2.73s. I put on a set of MAC shorties the same day of the 3.73 install. Ear to ear grin as I first pulled hard with the new gears in while smelling the production coating on the headers burning off. A truly beautiful moment ------------------ 1991 LX 5.0 Convertible AOD w/ shift kit Chassis: Steeda cross-brace SFCs, Steeda G-load brace, Steeda strut-tower brace, 4-pt. Autopower roll-bar Go-fast stuff: FMS 3.73s, K&N minus air silencer, MAC unequal length shorties and cat-backs, MAC underdrive pulleys, bad-ass Firehawk SZ50EP tires (225/55 16)