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3.9l EA S Pack Diff Ratio 

 

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 Post subject: 3.9l EA S Pack Diff Ratio
Posted: Fri Apr 22, 2005 1:59 am 
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I own a 1989 ea s pack 5 speed manual, and i was wondering what the diff ratio was in it, as i have my 2.77 LSD diff to put in it out of my old XE. If the ratio is the same then ill defineately swap it, but i dont think its worth stuuping down to a crappy ratio.
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Posted: Fri Apr 22, 2005 9:24 pm 
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2.92
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Posted: Sat Apr 23, 2005 1:10 am 
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you cant even use the center from a 2.77 they dont fit into the 2.92:1 diffs
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Posted: Sat Apr 23, 2005 1:54 am 
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is there that much of a difference going back to a 2.77? if there isnt a noticeable difference in like take off etc im more then keen to just swap em over. i was just worried that the crappy ratio would have big impacts on the cars accelleration etc
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Posted: Sat Apr 23, 2005 1:58 am 
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the car would be a dog with a 2.77 in it . they are bad enough with a 2.92 in them.

we have a couple of xr8's coming in next week you could go for one of the 3.27's out of one.
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Posted: Sat Apr 23, 2005 12:55 pm 
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a 3.23 will make it MUCH more drivable.. :)
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Posted: Sat Apr 23, 2005 11:03 pm 
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BUT over the 1/4 mile, the 3.23 will give you a slower time.
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Posted: Sun Apr 24, 2005 3:52 pm 
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so i guess it just isnt worth the effort of swapping the diffs over:( might have the just get the welder out!!!
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Posted: Mon Apr 25, 2005 6:44 pm 
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^^ :D
but then you will need a new axle very soon :P
haha
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Posted: Tue Apr 26, 2005 1:48 am 
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not to mention tyres! ill keep an eye out and see what i can find. i have a set of 3.23s on my desk, but im not sure whether i want to put them in my XE or not? i was thinking i might put 3.5s in the XE and put the 3.23s in the EA.
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Posted: Tue Apr 26, 2005 9:12 pm 
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there is NO 1/4 mile benifit of upgrading to 3.23 over 2.92.

but 3.5s on the other hand ;)
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