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diff change question (EL) 

 

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 Post subject: diff change question (EL)
Posted: Fri Jan 30, 2009 1:59 pm 
Getting Side Ways
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Ride: 98 EL Falcon - Last of the EL's

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the trusty single spinner in my EL is screaming its head off so i guess its time to change it, i was thinking about doing a stright swap over to an LSD diff, but considering that i clock up about 1500-2000ks p/w on the freeway i was wondering how much id lose if i went to an LSD(3.45) vs single(3.08).

 

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 Post subject: Re: diff change question (EL)
Posted: Fri Jan 30, 2009 5:36 pm 
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Are you sure you have a 3.08?
I went from 3.23ss in my EF to a 3.45lsd, in 5th it used to sit on 2k rpm @ 100, now it sits on 2200-2300 or so.

 

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 Post subject: Re: diff change question (EL)
Posted: Sat Jan 31, 2009 3:57 am 
Getting Side Ways
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Ride: 07 BF mk2 E-gas wagon + eb 5.0

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3.45's in a 6cyl e series will be 2150rpm @100km/h. 6 cyl also should have a 3.08 diff. xr6's got 3.45

v8's got 3.23 i think and maybe the ghia.

 

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 Post subject: Re: diff change question (EL)
Posted: Sat Jan 31, 2009 1:14 pm 
Getting Side Ways
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thanks guys, those rpm's sound a little to high for h'way driving so i think i'll just put a reco kit through the 3.08 diff :)

 

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 Post subject: Re: diff change question (EL)
Posted: Sat Jan 31, 2009 3:29 pm 
Getting Side Ways
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My EL fairmont has a 3.23 as std. You really want to make sure you know what you've got. The ratio is printed on a sticker on my EL axle and is about 30 to 40cm to the left of the drivers side wheel. Clean it with some saliva or the like. There is no metal tag.

 

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 Post subject: Re: diff change question (EL)
Posted: Sun Feb 01, 2009 1:17 pm 
Getting Side Ways
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Thats why I said are you sure its a 3.08? My EF std is 3,23, mates EF mont is 3.23, el mont 3.23.......

Also theres no point reco'ing a stock ratio ss diff.. absolute waste of money.

 

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 Post subject: Re: diff change question (EL)
Posted: Sun Feb 01, 2009 2:45 pm 
Getting Side Ways
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hmm i'll check it out later, to hot atm and im hung over from last night :? but i do know that at 100kph its doing about 1600-1700rpm(ish), and 98% of my driving is on the h'way so taller the better.

 

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 Post subject: Re: diff change question (EL)
Posted: Mon Feb 02, 2009 12:33 pm 
Getting Side Ways
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Auto, manual?
I just did a quick google, and it says the EF/L came out with 3.08 and 3.27... will check the workshop manual when I get home...

 

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 Post subject: Re: diff change question (EL)
Posted: Mon Feb 02, 2009 2:19 pm 
Getting Side Ways
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Ride: EL fairmont offroader

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Good to check the axle sticker.

Otherwise "failsafe" method is to check driveshaft rotation versus wheel rotation.

I think my 3.23 sees me doing about 1700rpm at 100km/h, but don't quote me on that.

 

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 Post subject: Re: diff change question (EL)
Posted: Mon Feb 02, 2009 4:12 pm 
Oompa Loompa
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to save pissin in the wind change the center keep your gears the dont have to change the crown that the easy way....
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 Post subject: Re: diff change question (EL)
Posted: Mon Feb 02, 2009 4:14 pm 
Oompa Loompa
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to save pissin in the wind change the center keep your gears the dont have to change the crown that the easy way....
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 Post subject: Re: diff change question (EL)
Posted: Mon Feb 02, 2009 11:35 pm 
Getting Side Ways
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krisisdog wrote:
Auto, manual?
I just did a quick google, and it says the EF/L came out with 3.08 and 3.27... will check the workshop manual when I get home...


just to update its an auto.

 

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 Post subject: Re: diff change question (EL)
Posted: Tue Feb 03, 2009 3:59 pm 
Oompa Loompa
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3.45' in an auto sits on 2,000 rpm at 100kph
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 Post subject: Re: diff change question (EL)
Posted: Wed Feb 04, 2009 10:27 am 
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my manual had a 3.27 put a 3.23 lsd out of a auto ef fairmont. It shouldnt be to hard to find a slippery with your standard ratio, wreakers have heaps of em
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 Post subject: Re: diff change question (EL)
Posted: Wed Feb 04, 2009 1:37 pm 
Getting Side Ways
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Yeh, EF/L's have different ratio's to <EDs.

 

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