3.55 vs 3.73 vs 4.10 Gear Ratios For The S197

anothermustanguy · December 7th, 2010, 11:03 PM

lol point taken. Well, actually you could go even lower...4:56s?

While we are talking about gears...you guys that have non-stock gearing...did you notice any difference/improvement in the driveline slop with the lower gears?

Understood some of you have an aftermarket drive shaft...

Sarge Silver Surfer · February 13th, 2011, 11:36 PM

Nice write ... I too will be doing 3.73s .. daily highway driver here. Also I agree I dont want to have to rebuild (yet)

06z28eaTer · February 14th, 2011, 10:02 AM

i have 4.10s in my auto 06, and i didnt notice a huge difference like i did from my 03GT when i added 3.73s. i think 4.10s is the way to go

valmanza10 · February 14th, 2011, 11:14 AM

I was lookin to pick up sum tires and wheels for track use. I want to get the race star 15 by 10s outback and the skinnies up front. What tire sizes do you guys recomend? I was looking at the 26 and 28s tall tires but not sure idk if my prokit springs will affect anything which ones should I go for. is there any modifications to putting theses wheels/tires on? Would this also affect my gears I have 4.10s

Sarge Silver Surfer · April 24th, 2011, 07:32 PM

Ok been reading this thread and i went looking for some gears. Well i did look on AM and found several different brands. Anyone better than another? Also Motive and Richmond have gears bigger than 4.10s and Motive had a 3.90 i believe. How do those sound? Just asking.

sonicx · April 24th, 2011, 07:35 PM

Originally Posted by Sarge Silver Surfer

Ok been reading this thread and i went looking for some gears. Well i did look on AM and found several different brands. Anyone better than another? Also Motive and Richmond have gears bigger than 4.10s and Motive had a 3.90 i believe. How do those sound? Just asking.

What are you specifically looking at doing that your looking at getting bigger than 4.10's?

The best gears imo are Ford branded gears (FRP). It's been awhile and I can't quite remember but doesn't FRP make a bigger gear than 4.10 you can buy?

TStang · April 24th, 2011, 07:46 PM

Originally Posted by Sarge Silver Surfer

Ok been reading this thread and i went looking for some gears. Well i did look on AM and found several different brands. Anyone better than another? Also Motive and Richmond have gears bigger than 4.10s and Motive had a 3.90 i believe. How do those sound? Just asking.

From what I understand from previous posts, is that Motive gears have alot whine to them.

Sarge Silver Surfer · April 24th, 2011, 08:19 PM

I dont need bigger than 4.10 was just curious. So is everyone sticking with Ford brand ? Also would i need a speedcal? On AM site they offer like all this extra stuff, is it needed?

TStang · April 24th, 2011, 09:02 PM

Originally Posted by Sarge Silver Surfer

I dont need bigger than 4.10 was just curious. So is everyone sticking with Ford brand ? Also would i need a speedcal? On AM site they offer like all this extra stuff, is it needed?

If you change your rear gears different from stock, you will need to get speedo recalibrated which is done by a tuner/dealer computer. If your car has more than 50000 miles on it, it's best to get the bearing kit. I went ahead an got the clutch disc pack also. I went with Richmond gears, but yet to have them installed. Next on my list.

Sarge Silver Surfer · April 24th, 2011, 09:21 PM

Ok so i only have 37k so i am good w/o bearing kit? ok is it cheaper to have someone speedocal or to purchase one from say AM and do it?

bamagt · April 24th, 2011, 09:33 PM

Get the bearing kit. You can change the speedo with a hand held tuner by adjusting the gear ratio when uploading a tune. If you do not have a tuner, get one. It should be the first mod you do, before gears or anything, imo.

NastyFX4 · April 24th, 2011, 09:38 PM

Originally Posted by anothermustanguy

lol point taken. Well, actually you could go even lower...4:56s?

No, 4.56s is the largest gear that will fit in the 8.8" differential. 4.88s+ will not fit.

Originally Posted by Sarge Silver Surfer

Ok so i only have 37k so i am good w/o bearing kit? ok is it cheaper to have someone speedocal or to purchase one from say AM and do it?

Yes, order the bearing kit. Do it right the first time for the little money it costs. It's worth the money for the piece of mind that you've got brand new parts.

No one will be able to calibrate the speedometer beyond using a programmer to do it. The dealer can sometimes but depending on the gear size and tire size maybe not.. Either way, just pony up and spend the money on a programmer. My recommendation is a SCT Xcal3 from a reputable tuner like VMP Tuning.

VMP Tuning - Buy Ford SCT & GM Custom Handheld Flash Tuners Performance Economy Towing: Custom Tuned SCT X3 Flash Tuner for Ford Vehicle from VMP

Sarge Silver Surfer · April 24th, 2011, 09:47 PM

I have a tuner so i would throw bearing kit on there. So the tuner does fix issue with cal, sweet. Mine is from Bama tunes i believe its the sf3 or whatever

NastyFX4 · April 24th, 2011, 09:55 PM

Well in that case you're good to go. Just go through the menu and you'll be able to change the gear ratio, tire size, etc. I guess you never went through the Menus?? Haha

February 13th, 2011, 11:36 PM	#182
Sarge Silver Surfer Regular 2007 Mustang GT ?? Join Date: Feb 2011 Location: OK Posts: 243 iTrader: 0 reviews	Nice write ... I too will be doing 3.73s .. daily highway driver here. Also I agree I dont want to have to rebuild (yet) __________________ You win some, you lose some... Always enjoy the challenge XBOX TAG = Ur D3d Memory

February 14th, 2011, 10:02 AM	#183
06z28eaTer Hardcore Enthusiast 2006 GT / 1999 Cobra Join Date: Jan 2008 Location: Memphis, TN Posts: 1,214 iTrader: 0 reviews	i have 4.10s in my auto 06, and i didnt notice a huge difference like i did from my 03GT when i added 3.73s. i think 4.10s is the way to go __________________ -2000 GT Vert- Grabber Blue Paint, Cervini Stalker Hood, Xenon Front/Saleen Rear Bumpers, Bullitt Side Scoops, 18"FR500 Wheels, CDC Bar And Much More!

February 14th, 2011, 11:14 AM	#184
valmanza10 Regular 2005 mustang gt 12.998 @ 110mph Join Date: May 2010 Location: loveland co Posts: 347 Blog Entries: 1 iTrader: 0 reviews	Mickey thompson e/t streets? I was lookin to pick up sum tires and wheels for track use. I want to get the race star 15 by 10s outback and the skinnies up front. What tire sizes do you guys recomend? I was looking at the 26 and 28s tall tires but not sure idk if my prokit springs will affect anything which ones should I go for. is there any modifications to putting theses wheels/tires on? Would this also affect my gears I have 4.10s

April 24th, 2011, 07:32 PM	#185
Sarge Silver Surfer Regular 2007 Mustang GT ?? Join Date: Feb 2011 Location: OK Posts: 243 iTrader: 0 reviews	Makes Ok been reading this thread and i went looking for some gears. Well i did look on AM and found several different brands. Anyone better than another? Also Motive and Richmond have gears bigger than 4.10s and Motive had a 3.90 i believe. How do those sound? Just asking. __________________ You win some, you lose some... Always enjoy the challenge XBOX TAG = Ur D3d Memory

April 24th, 2011, 08:19 PM	#188
Sarge Silver Surfer Regular 2007 Mustang GT ?? Join Date: Feb 2011 Location: OK Posts: 243 iTrader: 0 reviews	I dont need bigger than 4.10 was just curious. So is everyone sticking with Ford brand ? Also would i need a speedcal? On AM site they offer like all this extra stuff, is it needed? __________________ You win some, you lose some... Always enjoy the challenge XBOX TAG = Ur D3d Memory Last edited by Sarge Silver Surfer; April 24th, 2011 at 08:25 PM.

December 7th, 2010, 11:03 PM	#181
anothermustanguy Regular Join Date: Oct 2010 Posts: 174 iTrader: 0 reviews	lol point taken. Well, actually you could go even lower...4:56s? While we are talking about gears...you guys that have non-stock gearing...did you notice any difference/improvement in the driveline slop with the lower gears? Understood some of you have an aftermarket drive shaft...

April 24th, 2011, 09:21 PM	#190
Sarge Silver Surfer Regular 2007 Mustang GT ?? Join Date: Feb 2011 Location: OK Posts: 243 iTrader: 0 reviews	Ok so i only have 37k so i am good w/o bearing kit? ok is it cheaper to have someone speedocal or to purchase one from say AM and do it? __________________ You win some, you lose some... Always enjoy the challenge XBOX TAG = Ur D3d Memory

April 24th, 2011, 09:33 PM	#191
bamagt Enthusiast Last Three of VIN 666 13.7@104mph Join Date: May 2008 Location: Alaska Posts: 503 iTrader: 0 reviews	Get the bearing kit. You can change the speedo with a hand held tuner by adjusting the gear ratio when uploading a tune. If you do not have a tuner, get one. It should be the first mod you do, before gears or anything, imo. __________________ ~ 08 Alloy ~ JLT CAI ~ BBR Tunes ~ Comp Stage II NSRs ~ UDPs ~ MAC LT O/R Prochamber/Violators ~ Hurst STS ~ FRPP 4.10 Gear ~ BMR LCAs ~ CHE Relocation Brackets ~ BMR Adj Panhard ~ Prothane Motor Mounts ~ Coast Drive Shaft ~

April 24th, 2011, 09:47 PM	#193
Sarge Silver Surfer Regular 2007 Mustang GT ?? Join Date: Feb 2011 Location: OK Posts: 243 iTrader: 0 reviews	I have a tuner so i would throw bearing kit on there. So the tuner does fix issue with cal, sweet. Mine is from Bama tunes i believe its the sf3 or whatever __________________ You win some, you lose some... Always enjoy the challenge XBOX TAG = Ur D3d Memory

April 24th, 2011, 09:55 PM	#194
NastyFX4 Made in U.S.A. 2011 F150 FX4 Join Date: Jan 2009 Location: Florida Posts: 16,010 iTrader: 9 reviews	Well in that case you're good to go. Just go through the menu and you'll be able to change the gear ratio, tire size, etc. I guess you never went through the Menus?? Haha __________________

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top speed with 4.10s? \| Mustang Forums at StangNet	This thread	Refback	December 5th, 2011 12:13 AM
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3.55 vs 3.73 vs 4.10 Gear Ratios For The S197

Mickey thompson e/t streets?

Makes