Gear Help!! - 2003-04 Mach 1 Registry Owners Club

Mach1Speed03 · 04-23-2007, 01:48 PM

I have an 03 mach 1. Five spd. for everyday use whats a good gear besides 355s. I was looking at 410s or 390s. I want to actually feel a difference. help!!!

Evil_Capri · 04-23-2007, 01:59 PM

The 'Sticky' aided in my decision making process . . .

http://www.mach1registry.org/forums/...ad.php?t=35047

03mach91lx · 04-23-2007, 03:17 PM

well my opinion go with 4.30's nice kick in the arse, and you can get in to 5th at low speed = milage, what county of md are you in?

FordMan · 04-23-2007, 03:29 PM

+1

4.10's or 4.30's would be a good choice. I have 4.10's and have no complaints whatsoever, either during daily driving or on long road trips.

Screaming04 · 04-23-2007, 03:40 PM

4.10

Blood on Blood · 04-23-2007, 03:41 PM

I went with the 4.30 and am very pleased. They removed my axles during the install, so I upgraded those to Moser 28 hardened spline axles too.

Dave

Boss_302 · 04-23-2007, 11:26 PM

Just got my 4.10s installed and LOVE THEM also upgraded to 31 spline while i was at it.

Shaker Dan · 04-24-2007, 09:41 PM

Depends on what your use needs to be. My friend went 4:56 and they are great for punch. However, he only takes it out for Drag Racing or for shwoing off. I went with 4:10s because I wanted mine to be very streetable. And it is! I am turning 2600 at 80mph. So you can see highway is alright.

Oh, and yes, you do feel a good bit of difference with the 4:10s. We will find out what that amounts to when I get to the track Saturday.

Good luck!

Charles236 · 04-25-2007, 07:54 AM

In my Mach, I have run the stock 3.55s, 3.90s, 4.10s, and 4.30s so far. I liked the 4.30s the best for all around performance and general driving. The 3.90s were an improvement on the 3.55s, but not enough to justify the amount of work I did swapping them (I have an '03 Cobra IRS, and do all my own wrench turning). I installed the 4.30s while the Mach still had a solid axle, they were fun but no traction if I didn't walk it out and step into the throttle gradually. The current gears are 4.10s in a Thunderbird (cast Iron) pumpkin in the IRS. The traction loss is not as severe with the 4.10s in the IRS, since the torque reaction that lifts the right tire with a solid axle is absorbed by the IRS subframe. As for mileage, the worst mileage I got was with the 3.55s, the 4.30s occasionally netted 25 mpg on the interstate at 70 mph on trips and 20.5 mpg around town. The 4.10s give me the same results for mileage. Your results may differ, but this is what I observed on my Mach with my normal useage.

bluoval · 04-25-2007, 08:57 AM

Just put 4:10's in my '04 Azure 5-speed along with aluminum driveshaft.
In my humble opinion, they are the perfect gear for the street
and the car pulls hard in every gear.

Bruiser03 · 04-27-2007, 06:33 AM

I went 4.56 and love it. It's a daily driving with one heck off a punch. I've taken two friends of mine pushing 530 on one and 600+ on the other for ride and they are extremely shocked at what my car. Both have said that their cars don't put you in the seat as hard as mine does. 3000 rpm at 80mph !!!!

Black Mach 1 · 04-27-2007, 09:01 AM

4.10

You won't be disappointed. Your gas milage won't change unless your driving style changes.

almach · 04-28-2007, 10:05 PM

4:30's mine is a daily driver, I get over 20 MPG every tank and 5th gear is usable in city driving. Only warning, the first few times you hit it in 1st gear you may hit rev limiter it comes very quick

. I love my gears!!

04-23-2007, 01:48 PM	#1
Mach1Speed03 Registered User Join Date: Mar 2007 Location: MD. Posts: 112	Gear Help!! I have an 03 mach 1. Five spd. for everyday use whats a good gear besides 355s. I was looking at 410s or 390s. I want to actually feel a difference. help!!!

04-23-2007, 01:59 PM	#2
Evil_Capri Registered User Join Date: Apr 2004 Location: There Posts: 639	Re: Gear Help!! The 'Sticky' aided in my decision making process . . . http://www.mach1registry.org/forums/...ad.php?t=35047

04-23-2007, 03:17 PM	#3
03mach91lx Registered User Join Date: Sep 2005 Location: Baltimore,MD Posts: 75	Re: Gear Help!! well my opinion go with 4.30's nice kick in the arse, and you can get in to 5th at low speed = milage, what county of md are you in? __________________ Black 03/5spd BBK LONGTUBES,BBK O/R H-PIPE,SLP LM1'S,K&N CAI PHP INTAKE SPACER,GRANATELLI COP'S,4.30'S WITH 28 MOSERS,SHAKER MOD ,3650 UPGRADE KIT- JUNK, MGW (ORANGE HANDLE),CENTERFORCE DUAL FRICTION, UPGRADED CLUTCH CABLE N QUADRANT,DUAL PILLAR POD W/WATER TEMP+OIL PRESS,STEWART WARNER SHIFT LIGHT W/ TACH ADAPTOR, REAR SEAT DELETE KIT, IUP SPRAYED INTERIOR, 17X9 17X10.T BULLET ATHROCITE WITH RIVETS,^275/40/17-315/35/17^,DRILLED/SLOTTED ROTORS, TUNE COMING SOON,

04-23-2007, 03:29 PM	#4
FordMan I Am Cornholio!!! Join Date: Aug 2003 Location: Republic of Texas Posts: 3,745	Re: Gear Help!! +1 4.10's or 4.30's would be a good choice. I have 4.10's and have no complaints whatsoever, either during daily driving or on long road trips. __________________ Black 03 5spd w/ IUP Born on 02/25/2003 (thanks Donna) Left home and moved onward 12/19/22

04-23-2007, 03:40 PM	#5
Screaming04 old timer Join Date: Aug 2004 Location: Langley, BC Posts: 1,889	Re: Gear Help!! 4.10 __________________ Sold: Screaming Yellow Intercooled 2.1 KB 5speed Mach 1 running a measly 8psi

04-23-2007, 03:41 PM	#6
Blood on Blood rumble baby rumble Join Date: Mar 2006 Location: USA Posts: 120	Re: Gear Help!! I went with the 4.30 and am very pleased. They removed my axles during the install, so I upgraded those to Moser 28 hardened spline axles too. Dave __________________ a "To preserve liberty, it is essential that the whole body of people always possess arms, and be taught alike especially when young, how to use them." Richard Henry Lee "...to disarm the people - that was the best and most effectual way to enslave them." George Mason

04-23-2007, 11:26 PM	#7
Boss_302 Registered User Join Date: Sep 2005 Location: Iowa Posts: 302	Re: Gear Help!! Just got my 4.10s installed and LOVE THEM also upgraded to 31 spline while i was at it. __________________ 2003 Mach 1 LS swap with a couple of twins 1969 Mach 1 Winter Blue (under Restoration) 2003 Mach 1 white Sold Borla's bassani O/R X pip K&N cai Moser 31 spline with 4.10's Steeda Aluminum LCA and upper MGW shifter KYB adj Shocks and struts 2003 KB Cobra Sold to many things to list

04-24-2007, 09:41 PM	#8
Shaker Dan Registered User Join Date: Jun 2003 Location: Plainfield, IN Posts: 2,191	Re: Gear Help!! Depends on what your use needs to be. My friend went 4:56 and they are great for punch. However, he only takes it out for Drag Racing or for shwoing off. I went with 4:10s because I wanted mine to be very streetable. And it is! I am turning 2600 at 80mph. So you can see highway is alright. Oh, and yes, you do feel a good bit of difference with the 4:10s. We will find out what that amounts to when I get to the track Saturday. Good luck!

04-25-2007, 07:54 AM	#9
Charles236 Registered User Join Date: Aug 2005 Location: Greenville, SC Posts: 1,150	Re: Gear Help!! In my Mach, I have run the stock 3.55s, 3.90s, 4.10s, and 4.30s so far. I liked the 4.30s the best for all around performance and general driving. The 3.90s were an improvement on the 3.55s, but not enough to justify the amount of work I did swapping them (I have an '03 Cobra IRS, and do all my own wrench turning). I installed the 4.30s while the Mach still had a solid axle, they were fun but no traction if I didn't walk it out and step into the throttle gradually. The current gears are 4.10s in a Thunderbird (cast Iron) pumpkin in the IRS. The traction loss is not as severe with the 4.10s in the IRS, since the torque reaction that lifts the right tire with a solid axle is absorbed by the IRS subframe. As for mileage, the worst mileage I got was with the 3.55s, the 4.30s occasionally netted 25 mpg on the interstate at 70 mph on trips and 20.5 mpg around town. The 4.10s give me the same results for mileage. Your results may differ, but this is what I observed on my Mach with my normal useage.

04-25-2007, 08:57 AM	#10
bluoval Registered User Join Date: May 2006 Location: Peoria, IL Posts: 1,101	Re: Gear Help!! Just put 4:10's in my '04 Azure 5-speed along with aluminum driveshaft. In my humble opinion, they are the perfect gear for the street and the car pulls hard in every gear.

04-27-2007, 06:33 AM	#11
Bruiser03 Registered User Join Date: Feb 2007 Location: Ramrod Key, Florida Posts: 46	Re: Gear Help!! I went 4.56 and love it. It's a daily driving with one heck off a punch. I've taken two friends of mine pushing 530 on one and 600+ on the other for ride and they are extremely shocked at what my car. Both have said that their cars don't put you in the seat as hard as mine does. 3000 rpm at 80mph !!!! __________________ Mods done so far: FR500 Black/Chrome 18x9 in the front FR500 Black/Chrome 18x10 in the rear Hankook 255/45/ZR18 front Hankook 285/35/ZR18 rear Mac Long Tube Headers Catted H-pipe with cats punched Magnaflow mufflers JLT Ram CAI 3.73's gears UPR upper and lower control arms Steeda 3/4" lowering springs Welded Axle Tubes Spec Stage 3 Clutch UPR short shifter

04-27-2007, 09:01 AM	#12
Black Mach 1 32V Powered Join Date: Apr 2006 Location: Quad Cities, IL Posts: 879	Re: Gear Help!! 4.10 You won't be disappointed. Your gas milage won't change unless your driving style changes.

04-28-2007, 10:05 PM	#13
almach Registered User Join Date: Sep 2003 Location: North Alabama Posts: 27	Re: Gear Help!! 4:30's mine is a daily driver, I get over 20 MPG every tank and 5th gear is usable in city driving. Only warning, the first few times you hit it in 1st gear you may hit rev limiter it comes very quick . I love my gears!! __________________ Black and Gold 03 Mach 33 Ford 5 window 57 chevy belair 65 Pontiac All cars in some state of Build

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