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LH Torana Diff Bump

Started by _Anth 05_ , Mar 12 2021 10:34 AM

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19 replies to this topic

#1 _Anth 05_

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Posted 12 March 2021 - 10:34 AM

Hello Everyone,

I'm having trouble with one item on my LH and it's holding things up with the rebuild. The Diff Bump Mount. Mine was removed during the rebuild for a repair and now it can't be found. I've tried to locate one but they are hard to find so I've found out.

I was wondering if someone would be able to give me the measurements of one so I can have one manufactured.

Thanks

Anth

Diff Bump Mount.png 468.09K 7 downloads

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#2 Bigfella237

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Posted 12 March 2021 - 11:11 AM

If memory serves, they were only fitted on 5.0L cars, which likely explains why they're hard to find?

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#3 arrimar

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Posted 12 March 2021 - 11:27 AM

They are on more than just 5.0L's.
You'll find one on an LH 4cyl or some UC too.

The plate is 114mm x 45mm x 3mm
Hole ccs 88mm (check your floor)
Rubber block 45mm x 45mm x 56mm tall
Chamfer is 8mm x 15mm on front and back edges. (8mm on top, 15mm down sides.)

An HQ bump stop might get you through but Torana is a different shape.

If you use a diff other than standard it might bottom out earlier than desired anyhow.

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#4 hanra

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Posted 12 March 2021 - 11:53 AM

Yeah that was deleted on my Oct 75 L31.

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#5 Shiney005

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Posted 12 March 2021 - 12:55 PM

They are on more than just 5.0L's.
You'll find one on an LH 4cyl or some UC too.

U.C.? I thought they were only on the early L.H.s. (up to Sept '74)

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#6 308 Sunbird

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Posted 12 March 2021 - 03:39 PM

My 77 LX Sunbird that l turned into a Club car had one. I remember drilling out the spot welds for the bracket when the 9 inch went in.

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#7 dale

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Posted 13 March 2021 - 03:25 PM

There isn't any on my 76 SS hatch [ L32 ]

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#8 Ando

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Posted 14 March 2021 - 09:45 AM

Wasn't the pinion bump & bracket only on models that had the small or large Salisbury diff?

My 2x 5litre SS's with the Banjo diff don't have it.

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#9 purrlx

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Posted 14 March 2021 - 07:38 PM

My 6 cylinder hatch has one fitted to it

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#10 Shiney005

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Posted 15 March 2021 - 01:01 PM

Wasn't the pinion bump & bracket only on models that had the small or large Salisbury diff?

My 2x 5litre SS's with the Banjo diff don't have it.

Definitely on early LH 4 cyl Ando.

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#11 hanra

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Posted 15 March 2021 - 03:47 PM

The GMH Workshop Manual and parts manual contradict... One says its fitted to all flavors, the other said only fitted to certain flavors. VB & VC but not VD.

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#12 Shiney005

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Posted 16 March 2021 - 09:35 AM

Definitely fitted to some VD before Sept '74.

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#13 hanra

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Posted 16 March 2021 - 10:09 AM

Yep that def seems to be the case.

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#14 hanra

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Posted 16 March 2021 - 10:16 AM

Stolen form fb

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#15 yel327

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Posted 16 March 2021 - 10:21 AM

You have to be careful of Parts Catalogues. They aren’t a historical record and can be misleading. What is printed there may mean something entirely different to what it means on first read.

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#16 hanra

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Posted 16 March 2021 - 11:12 AM

My Oct 75 L31 VD Body has no provisions for this.

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#17 Shiney005

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Posted 16 March 2021 - 03:04 PM

What car was the facebook photo of Brad?

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#18 hanra

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Posted 16 March 2021 - 03:15 PM

Tony Natoli's Im pretty sure.

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#19 Shiney005

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Posted 16 March 2021 - 03:30 PM

I think his car had the MPH speedo so would be an early one. Is it an original 5000?

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#20 _Anth 05_

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Posted 11 April 2021 - 10:48 AM

Hi Everyone,

It's taken a long time to get back to it. I just wanted to thank you all for the information provided. Hopefully I can get this sorted now and keep progressing.

Cheers