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Old 10-23-2003, 05:08   #1 (permalink)
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Buying a new diff...

Hi all, Im just after some advice on getting a replacement diff from the wreckers- what should I be looking for/what should i expect? Some wreckers Ive looked at have diffs sitting outside on racks, and i dont know if this is a good thing. (Keeping in mind that I have no idea what Im talking about): My gf's dad, who is going to swap over the diffs said I should buy a diff that has the axels attatched (or something), and isn't 'full of crap' on the 'inside', preferably one that the wreckers have to take out of a car, as opposed to one thats just been sitting there for ages.

Any advice on what to look for mechanically/price wise would be greatly appreciated. Also its just an ED 3.08 diff im after.
Thnx. =)
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Old 10-27-2003, 20:47   #2 (permalink)
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Re: Buying a new diff...

Yep make sure it's got the axles in, a 3.08 is common as dog's balls and I doubt they'd take them apart anyway.
Basically, hold the wheels still and wiggle the tailshaft yoke - you'll probably get a little play, but if it moves more than a few mm before engaging the gears, it's getting a bit flogged out.
Also try to move the axles inside the casing - if they move, the bearings are severely bad
Other than that, just stick your finger in through the filler hole and see if you can find any dirty crap or metal filings inside the casing.
AFAIK the EA/EB/ED 3.08 is exactly the same unit...
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Old 10-30-2003, 15:10   #3 (permalink)
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Re: Buying a new diff...

OK, thanks for the reply mEB.
Ive ended up having to get a 3.08 without the axles, as my car has ABS and the wrckers didnt have any diffs with ABS ones. Cos of lack of axles and trouble associated with swapping off my diff onto the new one, they charged me $100 for the diff, (significantly lower price than normal i was lead to believe) but what the hell do i know about diffs? =)
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Old 10-30-2003, 15:55   #4 (permalink)
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Re: Buying a new diff...

I hope you got a 28 spline centre and not the 25 spline :/
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Old 10-30-2003, 16:00   #5 (permalink)
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Re: Buying a new diff...

How can you tell the difference between 25 and 28 NZ?
The diff i got was specifically an ED 3.08 but still im not sure if i should be worried (or what exactly it is im worried about)?
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Old 10-30-2003, 16:08   #6 (permalink)
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Re: Buying a new diff...

If it was out of an ED youll be fine. difference between 25 and 28 is that the axles have 25 and 28 'teeth' if you had a 25 spline centre you wouldnt beable to use your 28 spline axles. like fitting a square into a circle.
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Old 10-30-2003, 16:10   #7 (permalink)
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Re: Buying a new diff...

Ok, sweet-heres hoping all noisy diff issues will be sorted soon! Thanx NZ
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