gear ratio have no idea????? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 12 (permalink) Old 06-07-06, 10:38 PM Thread Starter
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gear ratio have no idea?????

Hey everyone im planning to change the gear ratios on my diff im currently got 3.45. at the moment but since my diff is screwed im planning to mess around and put something else,im thinking of going with 3.7 what do you guiys think i should go for ive got EA falcon i want faster take off speed.


88 EA fairmontGhia gunmetal black
EL engine,K'N pod FILTER,Pacemaker extractors,ELxr6 exhaust,hiflow cat,Diff 3.45.1 I went to Easternats I thought i had died and gone to heaven
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post #2 of 12 (permalink) Old 06-07-06, 10:48 PM
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Re: gear ratio have no idea?????

if you have an auto, i'd go 4.11 since everyone that has them is very happy.
otherwise if your manual go for something like 3.7 for orsm launches.

240rwkw slug.
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post #3 of 12 (permalink) Old 06-07-06, 10:54 PM Thread Starter
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Re: gear ratio have no idea?????

Ive rang a few places about 4*11 and they say it kills your top end speed.I also heard it drinks fuel like nothing

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post #4 of 12 (permalink) Old 06-07-06, 10:56 PM
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Re: gear ratio have no idea?????

4 speed auto cope well with 4.11's, you have a 3 speed dont you?

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post #5 of 12 (permalink) Old 06-07-06, 11:00 PM Thread Starter
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Re: gear ratio have no idea?????

Yeah i do?? what you reckon should i just stick to the 3.7

88 EA fairmontGhia gunmetal black
EL engine,K'N pod FILTER,Pacemaker extractors,ELxr6 exhaust,hiflow cat,Diff 3.45.1 I went to Easternats I thought i had died and gone to heaven
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post #6 of 12 (permalink) Old 06-08-06, 12:19 AM
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Re: gear ratio have no idea?????

Quote:
Originally Posted by EaRyder
Yeah i do?? what you reckon should i just stick to the 3.7
yeah probably, just stick a T5 in her!

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post #7 of 12 (permalink) Old 06-08-06, 02:53 AM
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Re: gear ratio have no idea?????

I agree with raven

94 ED Fairmont
AU Series II Intech 4.0L
EL Fuel injection
POD in Air Box
Thermo Fans
Pacemaker 4480, Custom Race 3" Exhaust, High Flow Cat
3000 Stall
4.11 LSD
Auto Cooler
To come:
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post #8 of 12 (permalink) Old 06-12-06, 11:09 PM
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Re: gear ratio have no idea?????

Change your transmission before your diff!

3.45s with a 3 speed auto would be bad enough regarding revs as is!

'91 EB Fairmont Ghia V8.
Pacemaker PH4000 extractors
Meaty semi-twin system
AUII XR8 t/b & maf, ELGT snorkel
Lows
BA semi-manual shifter conversion
Electronic shift kit
4.11 Hydratrak LSD
AU thermofans
Explorer intake manifold
Contra 16x9 rims, rubber: 225(f)/245(r)
Custom cupholders
Chiptorque HP2 chip
illegal tint

ET: 14.78 @ 91.48mph, 137rwkw!
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post #9 of 12 (permalink) Old 06-21-06, 02:57 AM
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Re: gear ratio have no idea?????

I have 3.7s in my EB, behind a 4 speed, very nice.
going to swap the diff in2 my XF soon, which is running an EB 4.0 and T5, will let you know how that goes.
But yeah Id be tossing that 3spd if I where you.



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post #10 of 12 (permalink) Old 06-21-06, 03:25 AM
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Re: gear ratio have no idea?????

Your XF sounds awesome!

Got any more info on it?

'91 EB Fairmont Ghia V8.
Pacemaker PH4000 extractors
Meaty semi-twin system
AUII XR8 t/b & maf, ELGT snorkel
Lows
BA semi-manual shifter conversion
Electronic shift kit
4.11 Hydratrak LSD
AU thermofans
Explorer intake manifold
Contra 16x9 rims, rubber: 225(f)/245(r)
Custom cupholders
Chiptorque HP2 chip
illegal tint

ET: 14.78 @ 91.48mph, 137rwkw!
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