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Old 06-23-2002, 02:47   #1 (permalink)
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ef II fairmont ghia diff

Hi guys im just wondering about the diffs on the fairmont ghia, I know that it is limitied slip as it is an ef2 and that the ratio is 3.45:1 but what would be more beneficial in terms of getting more off the line grunt but still maintaining good revs on the highway. My car has 142kw at the rear, is a 4 speed auto and at 110km/h it roughly sits on 2200 rpm in fourth.

Can i just change diff centres or do i have to change whole diff.

look forward to your input

YLDSIX
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Old 06-23-2002, 03:14   #2 (permalink)
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Hi yldsix

Just diff centre - but would include all bearings once diff is apart. Maybe even axle bearings. Just had my ef xr8 changed from 3.23 to 3.45. Noiceably quicker off mark but also revs out quicker. I would not go higher for my car!

Tim
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Old 06-23-2002, 03:32   #3 (permalink)
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thanks mate

Thanks for your reply i appreciate it

how many kw at the rear is yours

and just out of interest how much did it cost you
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Old 06-23-2002, 03:43   #4 (permalink)
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No trouble champ!

I guess your asking diff price- $890 give or take a few dollars( can't find receipt) That was bearings and gears. Maybe could have got cheaper if I had more patience to ring around and bargain!

As for rear wheel kw's - no idea! Is your 142rwkw standard or modified (I'm assuming modified)?
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Old 06-23-2002, 03:48   #5 (permalink)
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newxr8

yeh my car is modified it has a dev 3+ kit installed

thanks for the price

i think ill just get a manual gearbox put in instead
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Old 06-23-2002, 04:08   #6 (permalink)
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Can't beat a manual! I give mine heaps at times and no problems thus far (100,000km). Are you happy with dev3? Was it worth the money?
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Old 06-23-2002, 09:50   #7 (permalink)
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ef2 fairmont ghia's auto's have a 3.23 lsd not a 3.45

have you checked your lil tag on your actual diff?
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Old 06-24-2002, 01:11   #8 (permalink)
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Just asking for a mate.....
Does the EL Fairmont GHIA have the 3.23:1 lsd ..OR ..3.45:1 lsd diff?????
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Old 06-24-2002, 03:04   #9 (permalink)
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My Ghia's got the 3.23 LSD.
Also the workshop manual says that The (EF) Ghia's with the I6HO (Tickford) motor came with the 3.23 Diff.

Its possible though that somewhere along the line the diff ratio was changed though ?
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Old 06-24-2002, 06:56   #10 (permalink)
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sorry guys

sorry guys i checked my tag it is a 3.23 ratio diff but still to expensive to upgrade

And yes i am very happy with the dev conversion and thought it was well worth the dosh.

My mate at work had a lash at it tonight and couldn't believe the how much go it had even with the sluggish auto tranny and he has been in alot of fast cars. his words were "it would flog any standard 5.0 commodore", and he is a holden man.

thanks for your input guys

yldsix
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