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post #1 of 11 (permalink) Old 03-23-06, 06:51 PM Thread Starter
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diff

what would the standard ratio be for a ef futura?

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post #2 of 11 (permalink) Old 03-23-06, 07:18 PM
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Re: diff

I Think 3.08

240rwkw slug.
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post #3 of 11 (permalink) Old 03-24-06, 12:45 AM
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Re: diff

2.75, 2.92, 3.00, 3.23, 3.45

Take your pick.

Climb under the car, and clean the tag attatched to the filler bolt. It will tell you whats in it.

Jas
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post #4 of 11 (permalink) Old 03-24-06, 04:45 AM
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Re: diff

EF Futura (open wheeler diff) should be 3.08 as Raven said.

There's a possibility of it being 3.23 if it's LSD (maybe... higher spec EFs got this ratio with LSD)

-Dave-

'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 #5 of 11 (permalink) Old 03-25-06, 03:49 AM
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Re: diff

Let me see,
the borgwarner fitted to these can come in several versions....
There is obviously, single spinner, and then LSD.
Then there are 2 crown wheel sizes.

Then there is 2 pinion and 4 pinion.

And somewhere there is approx 15 Standard ratio's.

Then you can also add in the ratios used by Holden who run the same diff!

Check the bloody tag and stop guessing!!!!!!

Jas
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post #6 of 11 (permalink) Old 03-25-06, 06:29 AM Thread Starter
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Re: diff

lol i would have checked the ratio but diff is on ebay was just curious.the bloke is to lazy to look lol
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post #7 of 11 (permalink) Old 03-25-06, 06:15 PM
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Re: diff

Quote:
Originally Posted by jas24zzk
Check the bloody tag and stop guessing!!!!!!
lol best advice within the thread!

'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 #8 of 11 (permalink) Old 03-26-06, 04:03 AM
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Re: diff

Quote:
Originally Posted by Ghia5L
lol best advice within the thread!
Glad you took the comment with a grain of salt.

But sometimes to be clear, one must be blunt

Jas
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post #9 of 11 (permalink) Old 03-26-06, 02:52 PM
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Re: diff

Quote:
Originally Posted by jas24zzk
Glad you took the comment with a grain of salt.

But sometimes to be clear, one must be blunt

Jas
Hmmm come to think of it, to check the tag is to assume that the internals haven't been played with... My 3.27 tag isn't really telling the truth hehe

'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 #10 of 11 (permalink) Old 03-27-06, 02:57 AM
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Re: diff

No thats why you inspect things carefully!

And if you think its been open, and don't want to believe the tag, then open it!
Count the teeth on the crown and pinion.

Crown divided by pinon= ratio eg. 39 tooth crown 10 tooth pinion
39/10= 3.9:1 not bloody hard :)
Jas
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