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chassis bolts 72/73

Started by _sunburst73-xu1_ , Jan 31 2010 05:19 PM

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16 replies to this topic

#1 _sunburst73-xu1_

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Posted 31 January 2010 - 05:19 PM

Talking to John(Gong)through the week and talking about the different bolt heads form 72 to 73.
And got thinking what about Adelaide to Brisbane.
Heres some pics

101_1643.jpg 34.04K 96 downloads
These are the chaasi bolts out of 2 different cars.
Left one is out of my xu1 that was built in Brissi and the right is out of a 72 Adelaide sedan I just wrecked.

101_1646.jpg 48.69K 94 downloads
These are the bolts that bolt down the front cross member again the left is out of my xu1 very similar but the right one has a little circle in the middle.
So is this a 72/73 thing or a Adelaide/Brisbane thing.
cheers Dane

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#2 _BATHURST-32D_

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Posted 31 January 2010 - 05:36 PM

the one thats on your left is a 73 bolt,, no diffrence between adelaide and brizzy, the other is lc, and with the 2 front end bolts you have there, one is course thread and the other is fine.

cheer gong

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#3 LJ RB30

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Name:Trevor
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Posted 31 January 2010 - 10:25 PM

Talking to John(Gong)through the week and talking about the different bolt heads form 72 to 73.
And got thinking what about Adelaide to Brisbane.
Heres some pics
101_1643.jpg 34.04K 96 downloads
These are the chaasi bolts out of 2 different cars.
Left one is out of my xu1 that was built in Brissi and the right is out of a 72 Adelaide sedan I just wrecked.
101_1646.jpg 48.69K 94 downloads
These are the bolts that bolt down the front cross member again the left is out of my xu1 very similar but the right one has a little circle in the middle.
So is this a 72/73 thing or a Adelaide/Brisbane thing.
cheers Dane

The markings are to do with the tensile strength of the bolt, less lines means lower tensile strength.

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#4 _BATHURST-32D_

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Posted 01 February 2010 - 05:38 AM

just more proof that the 73 cars where made stronger,

cheers gong

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#5 _sunburst73-xu1_

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Posted 01 February 2010 - 07:12 AM

So the bolts must have been the same from lc right throught to late 72 before changing in 73.
Hey John checked the thread and they are the same(both course thread)unless they changed that when they whent to the Ljs.
but I Don't know
cheers Dane

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#6 _threeblindmice_

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Posted 01 February 2010 - 04:01 PM

just more proof that the 73 cars where made stronger,

cheers gong

They must have been getting ready for the V8 .

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#7 _sunburst73-xu1_

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Posted 01 February 2010 - 05:05 PM

good point.

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#8 _BATHURST-32D_

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Posted 02 February 2010 - 07:01 AM

mabe some of the big torana owners could pitch in with a pic of a 74 lh bolt head so we can see.

cheers gong

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#9 _sunburst73-xu1_

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Posted 02 February 2010 - 07:53 AM

Yes come in Big Brother

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#10 _BATHURST-32D_

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Posted 04 February 2010 - 07:43 PM

here dane these are the diffrence between each model and the plant thay where built at.

thay are seat bolts.
cheers gong

here dane these are the diffrence between each model and the plant thay where built at.

thay are seat bolts.
cheers gong

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#11 _sunburst73-xu1_

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Posted 06 February 2010 - 08:47 AM

here dane these are the diffrence between each model and the plant thay where built at.

thay are seat bolts.
cheers gong

here dane these are the diffrence between each model and the plant thay where built at.

thay are seat bolts.
cheers gong

I see no pics mate???

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#12 Heath

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Name:Heath
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Car:Heavily Modified UC Sunbird Hatchback
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Posted 06 February 2010 - 02:08 PM

All the late model suspension bolts I've seen (like diff, crossmember etc) are 6-dash high tensile bolts.

Obviously go the higher capacity bolt

Edited by Heath, 06 February 2010 - 02:09 PM.

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#13 73SUNBURSTEXYOUWON

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Name:JASO
Location:Brisbane
Car:4/73 LJ XU-1. Adelaide build, Sunburst. 1963 EH Premier. Brisbane build, Portsea Blue.
Joined: 14-June 12

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Posted 16 October 2019 - 07:56 PM

Hi all,
I know this is an old thread...
I am trying to confirm these front cross member bolt markings.

I have been shown images (attached) of a 6/73 adelaide car chassis having the bolt markings without the centre dot..

I have been informed a Dot Marked Bolt is an Adelaide fitted bolt. Brisbane cars having no Dot.
Then again as i have read, could the different markings be purely tensile strengths?? Dot bolts higher tensile.

Do any owners of 1973 Adelaide built LJ Toranas have front upper chassis Xmember bolts fitted, without central dot markings??

Thanks

Jason.