Diff identification

Includes clutch, transmission, propeller shaft,
universal joints, differential and rear axle.

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Sneezy1211
Posts: 71
Joined: Sun Jan 28, 2024 9:57 pm
State: QLD

Diff identification

Post by Sneezy1211 »

Hi all

I've done a search but haven't managed to find anything. How would someone go about identifying a diff ? I know the Ek ute we have doesn't have the the original as I remember doing a few centres and at least one housing when I was a young fella . Wanting to source parts but in not exactly sure what model Holden diff is currently in it ?
Thanks in advance

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Blacky
Posts: 12822
Joined: Tue Jul 20, 2004 8:58 am
State: WA
Location: up in the Perth hills

Re: Diff identification

Post by Blacky »

post up some pics mate , we will try and identify it for ya.
I started with nothing and still have most of it left.


Foundation member #61 of FB/EK Holden club of W.A.
Sneezy1211
Posts: 71
Joined: Sun Jan 28, 2024 9:57 pm
State: QLD

Re: Diff identification

Post by Sneezy1211 »

Blacky wrote:post up some pics mate , we will try and identify it for ya.
Cheers mate I'll get a few this week

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Mick
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State: NSW
Location: Coffs Harbour NSW

Re: Diff identification

Post by Mick »

what Blacky said, but taking a shot in the dark if it's just another Holden housing most likely EJ, EH, HD, HR which are all basically the same
sometimes yor just better off shitting in yor hands and clapping

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Woodstock chapter
Dr Terry
Posts: 214
Joined: Sat May 21, 2005 6:41 pm
State: NSW
Location: Eastwood

Re: Diff identification

Post by Dr Terry »

Mick wrote: Mon Aug 12, 2024 8:45 pm what Blacky said, but taking a shot in the dark if it's just another Holden housing most likely EJ, EH, HD, HR which are all basically the same
Not quite. If it's an early diff (3.89 Grey) it will have the early style rear uni joint which looks different to the later ones with their U-bolts.

If it's a later diff, it will most likely be 3.55 or 3.36. The taller diffs (3.08 & 2.78) have 2 long bolts at the bottom where it is held into the rear axle housing.

All of this can be seen without removing any parts.

Dr Terry
Sneezy1211
Posts: 71
Joined: Sun Jan 28, 2024 9:57 pm
State: QLD

Re: Diff identification

Post by Sneezy1211 »

Hi gents

Not sure if this is much help ? More looking at brake shoes , gaskets , Axel bearings , seals and so on to order . Are the pretty much the same through early holdens ?
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EK283
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Joined: Thu Mar 16, 2006 9:51 pm
State: NSW
Location: SYDNEY NSW

Re: Diff identification

Post by EK283 »

That looks like a EH diff, going by the bump stops and center with the 2 long bolts on the bottom.
Also the yolk/uni is different to an FB and EK.

regards Greg
Last edited by EK283 on Fri Aug 16, 2024 12:06 pm, edited 1 time in total.
So many cars so little time!
fb delivery
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Location: Toowoomba

Re: Diff identification

Post by fb delivery »

the center will be 3.08 or 2,78
butt will be stamped on the plate under the yoke


Rob
gledge
Posts: 302
Joined: Thu May 28, 2015 11:01 pm
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Location: adelaide

Re: Diff identification

Post by gledge »

Nearly looks like a V8 yoke so maybe HT ish?


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gledge
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Re: Diff identification

Post by gledge »

Ooh no EH


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Errol62
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Re: Diff identification

Post by Errol62 »

I agree it looks to be an original EJ EH housing with 3.08:1 most likely or 2.78. Good cruiser setup. Probably EJ HR brakes though there are possible variations.


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Dr Terry
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Joined: Sat May 21, 2005 6:41 pm
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Location: Eastwood

Re: Diff identification

Post by Dr Terry »

Yes, I agree It looks like an EJ/EH housing and brakes, with a 3.08 or 2.78 centre, probably out of a Torana, where they were far more common.

Dr Terry
Blacky
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Re: Diff identification

Post by Blacky »

diff ratio might be a little bit tall depending on what engine and tyre sizes you are going with - I tried a 3.08:1 and 14" rims and tyres on my ute for the Nationals one year and spent half my life in 2nd gear at the first sign of a hill.....
I started with nothing and still have most of it left.


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Errol62
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Re: Diff identification

Post by Errol62 »

Good with a torquey red 173 or bigger, otherwise yes. For a grey would be overdrive.


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EK van on rotisserie
Sneezy1211
Posts: 71
Joined: Sun Jan 28, 2024 9:57 pm
State: QLD

Re: Diff identification

Post by Sneezy1211 »

Blacky wrote:diff ratio might be a little bit tall depending on what engine and tyre sizes you are going with - I tried a 3.08:1 and 14" rims and tyres on my ute for the Nationals one year and spent half my life in 2nd gear at the first sign of a hill.....
Cheers mate , it's a pretty lively red 186. head has had the dividers taken out of the intake ports big valves and so on. Have a new set of webbers to hang of it as well . Wheels we bought BCI 15" smoothies 6" front and 7" rear haven't decided on tyre size as yet .

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