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Ausjacko Offline
#1 Posted : Thursday, 19 January 2017 8:00:50 PM(UTC)
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Hi All
Here is a photo of the diff out of the car. I know it is a 10 bolt Salisbury and it has a posi LSD centre. Question is, what year/s and models were these style of diff used and what is it known as. Basically, I am having trouble finding a new gasket for the rear cover.

Secondly, it has the worlds most expensive wheel/axle bearings fitted to it; Koyo RW507G @ $168 each! I understand they usually take the RW507ER and wonder if anyone knows why this weird bearing would be fitted.



cheers
Jacko
HK1837 Offline
#2 Posted : Thursday, 19 January 2017 9:24:47 PM(UTC)
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HK to HG. Apart from pre August 1968 HK this was the standard diff for 5 litre and up GTS, and also the standard for 5 litre and up manual for all other HK-HG. It was available as 3.08, 3.36 and 3.55. If you wanted a 3.36 behind 5 litre auto in non GTS HK-HG you also got this diff (2.78 and 3.08 were banjo), Brougham excepted though as it was banjo only other than a few specials.
The pumpkin was imported and GMH did the tubes and axles. If it has strange bearings it may be a Camaro diff, they are close. Spring hangers in a different spot and some had c-clip axles. They are Chev stud pattern though.

Edited by user Thursday, 19 January 2017 9:25:44 PM(UTC)  | Reason: Not specified

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If we all had the same (good) taste, who would buy all the Fords?
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Ausjacko on 20/01/2017(UTC)
castellan Offline
#3 Posted : Friday, 20 January 2017 9:56:48 AM(UTC)
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I don't think that they use gaskets anymore with the cover, you just use a gasket glue, or make one up.
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Ausjacko on 20/01/2017(UTC)
Ausjacko Offline
#4 Posted : Friday, 20 January 2017 7:11:39 PM(UTC)
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nice work fellas, thanks. Definitely out of a KTG. This one is 3.36
Cheers
Jacko
Dr Terry Offline
#5 Posted : Saturday, 21 January 2017 7:37:52 AM(UTC)
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The RW507ER axle bearing is the one for the job, I've fitted 100s..

Dr Terry
If at first you don't succeed, just call it Version 1.0
Ausjacko Offline
#6 Posted : Saturday, 21 January 2017 12:44:08 PM(UTC)
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Fitted the RW507ER the other day. Apart from the twin rubber o-ring on the ER, it appears and measures the same- weird. At $66 for seals and bearings for both sides (Japanese), a hell of a lot cheaper
Ausjacko Offline
#7 Posted : Sunday, 22 January 2017 9:38:00 PM(UTC)
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OK, the centre has a busted spring plate. Anyone know who in Australia sells an Auburn spring plate retainer kit part number 541035?
Cheers
Jacko?
HK1837 Offline
#8 Posted : Monday, 23 January 2017 6:22:57 AM(UTC)
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Moser Engineering in the USA. Try them.
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gm5735 Offline
#9 Posted : Monday, 23 January 2017 9:44:04 AM(UTC)
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The brake hose bracket position makes me think this could be from a HK, and not a HT, if it is indeed from a Holden.
The LSD mechanism will most likely be an Eaton type clutch pack, and not the tapered cone type seen on HT and HG.
You might try ngmotorsport for bits, or Shane Grindrod at Grindrod Automotive.
jayHK69 Offline
#10 Posted : Friday, 27 January 2017 12:47:17 PM(UTC)
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you might find your gasket here https://pontiworld.com.a...af82b6c8&x=0&y=0

these guys provide a great service with fast postage

jason
Dr Terry Offline
#11 Posted : Friday, 27 January 2017 1:29:40 PM(UTC)
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Originally Posted by: gm5735 Go to Quoted Post
The brake hose bracket position makes me think this could be from a HK,


Hi Geoff. On the subject of the change in mount position of the brake hose bracket on HK/T/G, do you know which is which ?

I make brake hoses & have catalogued all of the Holden hoses from 48 to current. There are a few anomalies, as you would expect, but the biggest query I have is with HK/T/G rear hoses. GM-H list 3 different lengths (12-inch, 15.5-inch & 10.5-inch) but do not list any application. Do you know when (& why) they changed ?

Dr Terry
If at first you don't succeed, just call it Version 1.0
Ausjacko Offline
#12 Posted : Friday, 27 January 2017 9:40:42 PM(UTC)
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Re the centre, it is an Auburn centre using the conical gear set-up and not the clutches. The things you have to learn restoring cars...
Squeak327 Offline
#13 Posted : Sunday, 29 January 2017 7:58:42 PM(UTC)
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This may assist in resolving the brake line length issue.

This photo shows the rear brake hose body mounting position on a HK with 10 bolt diff (which, based on my observations is the same in T & G):



This is different to a banjo equipped car where, based on my observations and cars I have had over the years the rubber brake hose runs straight from a mounting/connection bracket on the drivers side floor just next to the trans tunnel to a brass block mounted in an L shaped bracket which is welded to the driver's side axle tube - just like the bracket on Ausjacko's 10 bolt pic earlier in this post.

On the HK 10 bolt however, the brake hose runs from the body mount in the pic above to a flat banana shaped bracket mounted to the diff cover as per:



Here is a pic of my spare 10 bolt which is actually out of an HT. Note the different brake hose mounting bracket on this one relative to the HK - it protrudes towards front of the car making the brake hose shorter than the HK one - & the hose is approx 10 inches long.



The banjo hose measures just over 15 inches.

On that basis, which hose the 10 bolt uses depends on which mounting bracket it has on the diff. Did this change mid-way thru HK or was it a T/G thing I don't know - but a careful look at the HK and HT parts book - specifically at the metal brake lines running across the diff might give a clue as they are different too depending on which diff mount bracket is used.

Interesting to note that my HK eaton type has an L shaped bracket on the axle tube just like Ausjacko's but the HT one does not and never has had
HK1837 Offline
#14 Posted : Sunday, 29 January 2017 8:47:18 PM(UTC)
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I'll check mine in the shed later, I have a HK 3.36 Eaton diff, a HT 3.08 and a HG 3.36.
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gm5735 Offline
#15 Posted : Monday, 30 January 2017 12:22:18 AM(UTC)
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Terry, I'll respond more fully when I'm near my notes.
In a nutshell, the whole mess is to do with the introduction of the N10 twin exhaust. Before that everything was nice and neat - brakes on the right and exhaust on the left.
All HK share the same hard line from the brass Junction block on the front subframe skirt to the rear of the car.
In early cars, banjo and Salisbury, the hard line terminated in a bracket where it joined a flexible line to a corresponding tag on the diff, either banjo or Salisbury. The Salisbury tag was about where the tag is on Ausjackos car, which is why I questioned it.
When the twin system option was introduced the right intermediate pipe fouls the flexible line in bump.
The solution, for twin system Salisbury cars at least, was to either delete the body bracket, or bash it flat.
Gerard posted a picture of a bashee some time ago.
In addition to removal of the body bracket, an addition bracket was added on the left side of the tunnel, a union was added, a short extension hairpin hard line added, an SP1836 pipe clip added to retain the midpoint of the extension line, and the original loop at the end of the hard line from the junction block bent flat against the body.
A flexible line connects the extension pipe to the "banana" bracket which is held by the diff rear cover bolts.
Squeaks' photo clearly shows this arrangement.
I'm currently doing a Pagewood 1st type HK327 with this arrangement, in fact the original tag on the right hand side of the diff has been bashed flat and it has the banana bracket.
This arrangement, with the extension pipe uses the 15.5" flexible hose.
HK1837 Offline
#16 Posted : Monday, 30 January 2017 8:03:19 AM(UTC)
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So Geoff, putting 2 and 2 together does that mean that at some stage GMH intended the Salisbury rear axle to be fitted to either only single exhaust vehicles or do you think it will be like the early coupe sheetmetal, where for the first however many coupe bodies they have different sheetmetal (door corners, inner rear pillar holes for badges, windscreen pillars etc)? Basically indicating a minimum build quantity that gets used before later vehicles exhibit the change?
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Ausjacko Offline
#17 Posted : Tuesday, 31 January 2017 4:43:29 PM(UTC)
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seems my post, pics and reply from last night have been removed from this thread. Any ideas?
gm5735 Offline
#18 Posted : Tuesday, 31 January 2017 5:44:59 PM(UTC)
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Mine too. Must be too controversial for the censors.
HK1837 Offline
#19 Posted : Tuesday, 31 January 2017 7:04:12 PM(UTC)
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That is strange. I wonder what happened? I can't see any deleted posts. in the deleted posts thread?
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HK1837 Offline
#20 Posted : Tuesday, 31 January 2017 7:06:42 PM(UTC)
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That is strange. I wonder what happened? I can't see any deleted posts. in the deleted posts thread?
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If we all had the same (good) taste, who would buy all the Fords?
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